[3.12] Backport idlelib typos (#124324)

See python/cpython#123597.

(cherry picked from commit 1f4a49e)

Co-authored-by: abstractee

idlelib/Icons/README.txt

@@ -37,7 +37,7 @@ As of 2022, this was known true for 1 'major' Linux distribution.
 (Same would be true for any non-Aqua macOS with 8.5, but now none?)
 Can be deleted when we require 8.6 or it is known always used.
 
-Future: Derivitives of Python logo should be submitted for approval.
+Future: Derivatives of Python logo should be submitted for approval.
 PSF Trademark Working Group / Committee [email protected]
 https://www.python.org/community/logos/  # Original files
 https://www.python.org/psf/trademarks-faq/

idlelib/config.py

@@ -600,7 +600,7 @@ def GetCoreKeys(self, keySetName=None):
         """
         # TODO: = dict(sorted([(v-event, keys), ...]))?
         keyBindings={
-            # vitual-event: list of key events.
+            # virtual-event: list of key events.
             '<<copy>>': ['<Control-c>', '<Control-C>'],
             '<<cut>>': ['<Control-x>', '<Control-X>'],
             '<<paste>>': ['<Control-v>', '<Control-V>'],

idlelib/editor.py

@@ -914,7 +914,7 @@ def RemoveKeybindings(self):
     def ApplyKeybindings(self):
         """Apply the virtual, configurable keybindings.
 
-        Alse update hotkeys to current keyset.
+        Also update hotkeys to current keyset.
         """
         # Called from configdialog.activate_config_changes.
         self.mainmenu.default_keydefs = keydefs = idleConf.GetCurrentKeySet()

idlelib/extend.txt

@@ -52,7 +52,7 @@ should probably be refined in the future.)
 
 Extensions are not required to define menu entries for all the events they
 implement.  (They are also not required to create keybindings, but in that
-case there must be empty bindings in cofig-extensions.def)
+case there must be empty bindings in config-extensions.def)
 
 Here is a partial example from zzdummy.py: