Restore ctrl-b/f (#20399)

Follow up from #20378

Release Notes:

- N/A

assets/keymaps/default-macos.json

@@ -81,11 +81,11 @@
       "right": "editor::MoveRight",
       "ctrl-p": "editor::MoveUp",
       "ctrl-n": "editor::MoveDown",
+      "ctrl-b": "editor::MoveLeft",
+      "ctrl-f": "editor::MoveRight",
       "ctrl-l": "editor::ScrollCursorCenter",
       "alt-left": "editor::MoveToPreviousWordStart",
-      "ctrl-b": "editor::MoveToPreviousWordStart",
       "alt-right": "editor::MoveToNextWordEnd",
-      "ctrl-f": "editor::MoveToNextWordEnd",
       "cmd-left": "editor::MoveToBeginningOfLine",
       "ctrl-a": "editor::MoveToBeginningOfLine",
       "cmd-right": "editor::MoveToEndOfLine",
@@ -97,9 +97,9 @@
       "shift-down": "editor::SelectDown",
       "ctrl-shift-n": "editor::SelectDown",
       "shift-left": "editor::SelectLeft",
-      "ctrl-shift-b": "editor::SelectToPreviousWordStart",
+      "ctrl-shift-b": "editor::SelectLeft",
       "shift-right": "editor::SelectRight",
-      "ctrl-shift-f": "editor::SelectToNextWordEnd",
+      "ctrl-shift-f": "editor::SelectRight",
       "alt-shift-left": "editor::SelectToPreviousWordStart", // cursorWordLeftSelect
       "alt-shift-right": "editor::SelectToNextWordEnd", // cursorWordRightSelect
       "ctrl-shift-up": "editor::SelectToStartOfParagraph",