feat: Add jest-mock-vscode dependency and create mock for vscode

package.json

@@ -27,6 +27,9 @@
         "Other"
     ],
     "main": "./out/src/extension.js",
+    "extensionDependencies": [
+        "vscode.git"
+    ],
     "icon": "assets/logo.png",
     "packageManager": "[email protected]",
     "engines": {
@@ -192,6 +195,7 @@
         "@types/mocha": "^10.0.9",
         "@types/node": "~20.17.1",
         "@types/npmcli__promise-spawn": "^6.0.3",
+        "@types/sinon": "17.0.3",
         "@types/vscode": "1.94.0",
         "@vscode/test-electron": "^2.4.1",
         "@vscode/vsce": "^3.2.1",
@@ -203,14 +207,17 @@
         "eslint": "^8.57.1",
         "glob": "^11.0.0",
         "jest": "^29.7.0",
+        "jest-mock-vscode": "^4.0.3",
         "lint-staged": "^15.2.10",
         "mocha": "^10.7.3",
         "ovsx": "^0.10.0",
         "prettier": "^3.3.3",
         "rimraf": "^6.0.1",
         "simple-git-hooks": "^2.11.1",
+        "sinon": "19.0.2",
         "stale-dep": "^0.7.0",
         "ts-jest": "^29.2.5",
+        "ts-node": "^10.9.2",
         "tsx": "^4.19.1",
         "typescript": "~5.6.3"
     }