vim: keymap tweaks (#2674)

A few small tweaks to fix some of the community issues

Release Notes:

- vim: Fix `escape` in command palette
([#1347](https://github.com/zed-industries/community/issues/1347)).
- vim: Allow `^` as a motion in actions
([#856](https://github.com/zed-industries/community/issues/856)).
- vim: Allow `ctrl-c` to exit visual mode
([#1447](https://github.com/zed-industries/community/issues/1447)).

assets/keymaps/vim.json

@@ -35,6 +35,7 @@
       "l": "vim::Right",
       "right": "vim::Right",
       "$": "vim::EndOfLine",
+      "^": "vim::FirstNonWhitespace",
       "shift-g": "vim::EndOfDocument",
       "w": "vim::NextWordStart",
       "shift-w": [
@@ -92,7 +93,10 @@
       ],
       "ctrl-o": "pane::GoBack",
       "ctrl-]": "editor::GoToDefinition",
-      "escape": "editor::Cancel",
+      "escape": [
+        "vim::SwitchMode",
+        "Normal"
+      ],
       "0": "vim::StartOfLine", // When no number operator present, use start of line motion
       "1": [
         "vim::Number",
@@ -165,7 +169,6 @@
       "shift-a": "vim::InsertEndOfLine",
       "x": "vim::DeleteRight",
       "shift-x": "vim::DeleteLeft",
-      "^": "vim::FirstNonWhitespace",
       "o": "vim::InsertLineBelow",
       "shift-o": "vim::InsertLineAbove",
       "~": "vim::ChangeCase",
@@ -305,6 +308,10 @@
         "vim::PushOperator",
         "Replace"
       ],
+      "ctrl-c": [
+        "vim::SwitchMode",
+        "Normal"
+      ],
       "> >": "editor::Indent",
       "< <": "editor::Outdent"
     }
@@ -321,7 +328,10 @@
     "bindings": {
       "tab": "vim::Tab",
       "enter": "vim::Enter",
-      "escape": "editor::Cancel"
+      "escape": [
+        "vim::SwitchMode",
+        "Normal"
+      ]
     }
   }
 ]