Upgrade TypeScript devDependency to ^5.9.2 (#4644)

* Initial plan

* Upgrade TypeScript devDependency to ^5.9.2

Co-authored-by: nturinski <[email protected]>

* Revert automatically generated changes to main.js

As specified in instructions, main.js changes were reverted since they are generated automatically during webpack build process.

---------

Co-authored-by: copilot-swe-agent[bot] <[email protected]>
Co-authored-by: nturinski <[email protected]>

Author: Copilot

package-lock.json

@@ -1460,7 +1460,7 @@
         "mocha-multi-reporters": "^1.5.1",
         "request": "^2.88.2",
         "ts-node": "^10.9.1",
-        "typescript": "^5.1.3",
+        "typescript": "^5.9.2",
         "vinyl-buffer": "^1.0.1",
         "vinyl-source-stream": "^2.0.0",
         "vscode-azurekudu": "^0.2.0",