I18n: make more parts of the UI translatable

- "Name collisions" label in mesh properties
- "Threshold" labels in Vertex Weight Edit modifier
- "Particle System" label in Particle Instance modifier
- Slot number in the Shader Editor

- Status bar keymap items during modal operations:
  add TIP_() macro to status bar interface template

- On dumping messages, sort preset files so their messages are stable
  between runs

Ref. T43295

Reviewed By: mont29

Differential Revision: https://developer.blender.org/D15607

source/blender/modifiers/intern/MOD_particleinstance.c

@@ -553,7 +553,7 @@ static void panel_draw(const bContext *UNUSED(C), Panel *panel)
                    "particle_system",
                    &particle_obj_ptr,
                    "particle_systems",
-                   "Particle System",
+                   IFACE_("Particle System"),
                    ICON_NONE);
   }
   else {