fix renderer process debugger regression after Angular 19 branch

[ZadenYip]

Description

Fixes a configuration regression introduced after the Angular 19 branch that prevented VS Code from properly debugging the renderer process.
This change updates .vscode/launch.json, .vscode/tasks.json, angular.json, and package.json to restore correct debugger behavior and ensure breakpoints are hit.

Fixes #848

Type of change

Please delete options that are not relevant.

• Bug fix (non-breaking change which fixes an issue)

Checklist:

• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• My changes generate no new warnings
• I have run tests (npm run test & npm run e2e) that prove my fix is effective or that my feature works

Details

1. .vscode/launch.json: removed "sourceMapPathOverrides" because Webpack is no longer used.
2. .vscode/tasks.json: updated prelaunch and background tasks to match Angular 21 build output. "endsPattern" changed from "^.*Compiled successfully.*" to "Application bundle generation complete" to correctly detect when the Angular dev server has finished building.

3. angular.json: added missing comma in environment configuration
4. package.json: update "ng:serve" script to include dev configuration (-c dev)