feat: track VSCode settings and keybindings in dotfiles

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

.config/Code/User/keybindings.json

@@ -0,0 +1,10 @@
+[
+    {
+        "key": "shift+enter",
+        "command": "workbench.action.terminal.sendSequence",
+        "args": {
+            "text": "\u001b\r"
+        },
+        "when": "terminalFocus"
+    }
+]