Eqraa Desktop v0.3.0

fix(build): resolve Windows case-insensitive path collision

On Windows (case-insensitive FS), `@/views/Exams` resolves to the
`exams/` directory, creating a circular import through the barrel
file. Same for Students, Tarbiwi, QuranCircles.

- Point router lazy imports directly at the lowercase module folders
  (`@/views/exams`, `@/views/students`, etc.)
- Delete the now-unnecessary PascalCase wrapper files that only
  re-exported from the decomposed modules

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>