cleanup: fix typos in comments and docs

Followup to https://developer.blender.org/D10288

Reviewed By: Blendify

Differential Revision: https://developer.blender.org/D10346

doc/python_api/examples/bpy.app.timers.5.py

@@ -11,7 +11,7 @@ import queue
 
 execution_queue = queue.Queue()
 
-# This function can savely be called in another thread.
+# This function can safely be called in another thread.
 # The function will be executed when the timer runs the next time.
 def run_in_main_thread(function):
     execution_queue.put(function)

doc/python_api/rst/info_gotcha.rst

@@ -728,7 +728,7 @@ Abusing RNA property callbacks
 ------------------------------
 
 Python-defined RNA properties can have custom callbacks. Trying to perform complex operations
-from there, like calling an operator, may work, but is not officialy recommended nor supported.
+from there, like calling an operator, may work, but is not officially recommended nor supported.
 
 Main reason is that those callback should be very fast, but additionally, it may for example
 create issues with undo/redo system (most operators store an history step, and editing an RNA