Fix: Remove widgets metadata causing GitHub rendering issues (#410)

* Fix: Remove widgets metadata causing GitHub rendering issues

- Removed problematic widgets metadata from 11 affected notebooks
- Fixes issue #398: 'Invalid Notebook' error on GitHub
- Notebooks affected: 27, 31, 32, 33, 34, 35, 37, 40, 41, 44, 46
- Added comprehensive documentation of the fix
- All notebooks remain fully functional and now render correctly on GitHub

Closes #398

* Remove FIX_DOCUMENTATION.md

* Fix: Resolve Unicode encoding issues in notebooks

---------

Co-authored-by: Syed Shahmeer Ali <ashahmeer73@gmail.com>

Author: SyedShahmeerAli12

tutorials/27_First_RAG_Pipeline.ipynb

@@ -525,4 +525,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 0
-}
+}