prevent double-adding selected context

shortcut changes:
- (unchanged) toggle between chat and editor: alt+L
- add selection as context: alt+L -> shift+alt+L
- new chat: shift+alt+L -> shift+ctrl+L

vscode/CHANGELOG.md

@@ -12,6 +12,11 @@ This is a log of all notable changes to Cody for VS Code. [Unreleased] changes a
 
 ### Changed
 
+- Chat: This patch updates the chat keyboard shortcuts to be as follows, thereby avoiding the tendency to "double-add" a code snippet when using the `alt+L` shortcut:
+  - `Alt+L`: between chat and editor (this is unchanged)
+  - `Shift+Alt+L` (previously alt+L): add selection as context:
+  - `Shift+Ctrl+L` (previously shift+alt+L): new chat
+
 ## 1.40.1
 
 ### Fixed

vscode/package.json

@@ -608,7 +608,7 @@
       },
       {
         "command": "cody.chat.new",
-        "key": "shift+alt+l",
+        "key": "shift+ctrl+l",
         "when": "cody.activated"
       },
       {
@@ -645,12 +645,12 @@
       },
       {
         "command": "cody.mention.selection",
-        "key": "alt+l",
+        "key": "shift+alt+l",
         "when": "cody.activated && editorTextFocus && editorHasSelection"
       },
       {
         "command": "cody.mention.selection",
-        "key": "alt+/",
+        "key": "shift+alt+/",
         "when": "cody.activated && editorTextFocus && editorHasSelection"
       },
       {