实现 Shift+Alt+T 将选中文字转换为大写

package.json

@@ -9,7 +9,9 @@
   "categories": [
     "Other"
   ],
-  "activationEvents": [],
+  "activationEvents": [
+    "onCommand:extension.convertCase"
+  ],
   "main": "./out/extension.js",
   "contributes": {
     "commands": [
@@ -17,6 +19,13 @@
         "command": "text-conversion.helloWorld",
         "title": "Hello World"
       }
+    ],
+    "keybindings": [
+      {
+        "command": "extension.convertCase",
+        "key": "shift+alt+t",
+        "when": "editorTextFocus"
+      }
     ]
   },
   "scripts": {