chore: remove unused angular-loader and angular-mocks dependencies

[Kunal1522]

Summary

Removes two unused dependencies from package.json that have no references anywhere in the project.

Closes #40

What was removed

Dependency	Reason unused
@bower_components/angular-loader	Not referenced in any <script> tag in index.html or any language variant
@bower_components/angular-mocks	Intended for Karma/Jasmine unit tests, but no test files exist in this repository

Verification

Searched the entire app/ directory and gulpfile.js for any reference to either package — no matches found:

$ grep -r "angular-loader" app/
(no output)

$ grep -r "angular-mocks" app/
(no output)

All other dependencies remain — confirmed still in active use via <script> tags (e.g. angular-route, angular-gettext, jquery).

[robertodauria]

Thanks for the contribution. Closing this as it is superseded by #83, which rewrites the codebase removing Angular, jQuery, Gulp, and the old app/ directory structure. The files modified by this PR either no longer exist after that change or the change has already been made.

We aim to merge #83 next week, which will give contributors a stable, modern base to work from. Thoughtful, targeted contributions that build on where the project is heading are much more valuable. We'd encourage you to review #83 and open any future PRs on top of that.