UI: fix a few messages

- The official spelling of FFMPEG is FFmpeg (upper, then lower case).
- The normal vector copy and paste operators shoud be singular because
  they can only be used on a single element.
- The "Parent File" file browser operator goes up one level in the
  file hierarchy. It should be called "Parent Directory", like the
  current description "Go to the parent directory".
- "Mass Vertex Group" used to define the mass, but was reused at some
  point and now actually defines cloth pinning so it should be called
  "Pin Vertex Group", as in the UI.
- The Transformation constraint's Map To Type suffered from a
  typo (probably of -> on).
- "Fall-off" is more commonly spelled "Falloff".
- "Effected" should really be "Affected" in this case.
- Rephrase the descriptions for the curve painting tools drawing
  plane, which did not seem to match what the settings do. Namely,
  they allow selecting in which plane to draw curves using the Curve
  Draw tool.

Reported by @Joan-Pujolar in #43295:
- Force exporting animation on every objects [objects singular]
- Color of the interface widgets text insertion cursor (caret) [delete
  interface widgets]
- Index of active aov [AOV in uppercase everywhere else]
- Does this tool use an painting canvas [an]
- This script was written Blender version %d.%d.%d ["for" missing
  before "Blender"]
- [fcurve -> F-curve]
- unknown error stating file [statting]
- Offset into each stroke before the beginning of  the dashed segment
  generation [Two spaces between of and the]
- Find the nearest element in the a group. [either "the" or "a"]

@@ -18,3 +18,3 @@
 
 class RENDER_PT_ffmpeg_presets(PresetPanel, Panel):
-    bl_label = "FFMPEG Presets"
+    bl_label = "FFmpeg Presets"

@@ -4512,2 +4512,2 @@
-        layout.operator("mesh.normals_tools", text="Copy Vectors").mode = 'COPY'
-        layout.operator("mesh.normals_tools", text="Paste Vectors").mode = 'PASTE'
+        layout.operator("mesh.normals_tools", text="Copy Vector").mode = 'COPY'
+        layout.operator("mesh.normals_tools", text="Paste Vector").mode = 'PASTE'

@@ -1220,3 +1221,3 @@
         rd->ffcodecdata.audio_mixrate != 48000 && rd->ffcodecdata.audio_channels != 2)
     {
-      BKE_report(reports, RPT_ERROR, "FFMPEG only supports 48khz / stereo audio for DV!");
+      BKE_report(reports, RPT_ERROR, "FFmpeg only supports 48khz / stereo audio for DV!");

@@ -278,3 +278,3 @@
 
   if ((ptr->owner_id == NULL) && (ptr->data == NULL)) {
-    BKE_report(reports, RPT_ERROR, "No RNA pointer available to retrieve values for this fcurve");
+    BKE_report(reports, RPT_ERROR, "No RNA pointer available to retrieve values for this F-curve");

@@ -289,3 +289,3 @@
     BKE_reportf(reports,
                 RPT_ERROR,
-                "Could not update flags for this fcurve, as RNA path is invalid for the given ID "
+                "Could not update flags for this F-curve, as RNA path is invalid for the given ID "

@@ -2254,3 +2254,3 @@
 {
   /* identifiers */
-  ot->name = "Parent File";
+  ot->name = "Parent Directory";

@@ -932,3 +932,3 @@
       1,
       "Select Curves",
-      "Allow selecting all the keyframes of a curve by selecting the calculated fcurve");
+      "Allow selecting all the keyframes of a curve by selecting the calculated F-curve");

@@ -649,3 +649,3 @@
                 "Unable to stat '%s': %s",
                 filepath,
-                errno ? strerror(errno) : TIP_("unknown error stating file"));
+                errno ? strerror(errno) : TIP_("unknown error statting file"));

@@ -649,3 +649,3 @@
                                 "rna_ClothSettings_mass_vgroup_set");
   RNA_def_property_override_clear_flag(prop, PROPOVERRIDE_OVERRIDABLE_LIBRARY);
-  RNA_def_property_ui_text(prop, "Mass Vertex Group", "Vertex Group for pinning of vertices");
+  RNA_def_property_ui_text(prop, "Pin Vertex Group", "Vertex Group for pinning of vertices");

@@ -2238,3 +2238,3 @@
   RNA_def_property_enum_items(prop, transform_items);
   RNA_def_property_ui_text(
-      prop, "Map To", "The transformation type to affect of the constrained object");
+      prop, "Map To", "The transformation type to affect on the constrained object");

@@ -38,3 +38,3 @@
   }
   else if (fcu->fpt) {
-    BKE_report(reports, RPT_WARNING, "FCurve has already sample points");
+    BKE_report(reports, RPT_WARNING, "F-Curve already has sample points");

@@ -55,3 +55,3 @@
   }
   else if (fcu->bezt) {
-    BKE_report(reports, RPT_WARNING, "FCurve has already keyframes");
+    BKE_report(reports, RPT_WARNING, "F-Curve already has keyframes");

@@ -4275,3 +4275,3 @@
       prop,
       "Offset",
-      "Offset into each stroke before the beginning of  the dashed segment generation");
+      "Offset into each stroke before the beginning of the dashed segment generation");

@@ -1519,3 +1519,3 @@
   RNA_def_property_enum_sdna(prop, NULL, "falloff");
   RNA_def_property_enum_items(prop, falloff_items);
-  RNA_def_property_ui_text(prop, "Fall-Off", "");
+  RNA_def_property_ui_text(prop, "Falloff", "");

@@ -1728,3 +1728,3 @@
   RNA_def_property_boolean_sdna(prop, NULL, "flag", PFIELD_MULTIPLE_SPRINGS);
   RNA_def_property_ui_text(
-      prop, "Multiple Springs", "Every point is effected by multiple springs");
+      prop, "Multiple Springs", "Every point is affected by multiple springs");

@@ -4069,0 +4069,4 @@
+       "VIEW",
+       0,
+       "View",
+       "Draw in a plane aligned to the viewport"},

@@ -4438,3 +4442,3 @@
                                "rna_ViewLayer_active_aov_index_set",
                                "rna_ViewLayer_active_aov_index_range");
-    RNA_def_property_ui_text(prop, "Active AOV Index", "Index of active aov");
+    RNA_def_property_ui_text(prop, "Active AOV Index", "Index of active AOV");

@@ -1610,3 +1610,2 @@
   RNA_def_property_array(prop, 3);
-  RNA_def_property_ui_text(
-      prop, "Text Cursor", "Color of the interface widgets text insertion cursor (caret)");
+  RNA_def_property_ui_text(prop, "Text Cursor", "Color of the text insertion cursor (caret)");

@@ -303,3 +303,3 @@
   RNA_def_property_ui_text(prop, "Index", "");
   RNA_def_property_boolean_funcs(prop, "rna_WorkSpaceTool_use_paint_canvas_get", NULL);
-  RNA_def_property_ui_text(prop, "Use Paint Canvas", "Does this tool use an painting canvas");
+  RNA_def_property_ui_text(prop, "Use Paint Canvas", "Does this tool use a painting canvas");

@@ -325,3 +325,3 @@
 DefNode(GeometryNode, GEO_NODE_IMAGE_INFO, 0, "IMAGE_INFO", ImageInfo, "Image Info", "Retrieve information about an image")
 DefNode(GeometryNode, GEO_NODE_IMAGE_TEXTURE, def_geo_image_texture, "IMAGE_TEXTURE", ImageTexture, "Image Texture", "Sample values from an image texture")
-DefNode(GeometryNode, GEO_NODE_INDEX_OF_NEAREST, 0, "INDEX_OF_NEAREST", IndexOfNearest, "Index of Nearest", "Find the nearest element in the a group. Similar to the \"Sample Nearest\" node")
+DefNode(GeometryNode, GEO_NODE_INDEX_OF_NEAREST, 0, "INDEX_OF_NEAREST", IndexOfNearest, "Index of Nearest", "Find the nearest element in a group. Similar to the \"Sample Nearest\" node")