Migrate/root controller

[Thirus224849242]

Description

This PR migrates the root-controller from CoffeeScript and AngularJS to TypeScript and Angular as part of the ongoing Doubtfire migration effort.

The original AppCtrl controller was empty with only a GlobalStateService injection and no implementation. The new RootControllerComponent maintains this behaviour while following the Angular component pattern.

Changes made:

• Created root-controller.component.ts as the Angular replacement for root-controller.coffee
• Registered RootControllerComponent in doubtfire-angular.module.ts declarations
• Downgraded RootControllerComponent in doubtfire-angularjs.module.ts using downgradeComponent to maintain hybrid app compatibility
• Registered AppCtrl controller in doubtfire-angularjs.module.ts to maintain compatibility with ng-controller="AppCtrl" in index.html
• Removed doubtfire.config.root-controller from config.coffee
• Deleted old root-controller.coffee

Fixes # (issue)

Type of change

• New feature (non-breaking change which adds functionality)

How Has This Been Tested?

The app was loaded and tested locally after each change to ensure nothing broke. The ng-controller="AppCtrl" in index.html continues to work correctly via the downgradeComponent bridge.

Testing Checklist:

• Tested in latest Chrome
• Tested in latest Safari
• Tested in latest Firefox

Checklist:

• My code follows the style guidelines of this project
• I have performed a self-review of my own code
• I have commented my code in hard-to-understand areas
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have requested a review from @macite and @jakerenzella on the Pull Request

[WaelAlahamdi]

Hi @Thirus224849242 ,
Reviewed locally and tested successfully. The migration keeps the original AppCtrl behaviour, replaces the old CoffeeScript/AngularJS root controller with the new TypeScript/Angular component, and maintains hybrid app compatibility through the downgrade bridge. No issues from my side. Approved.