add additional features to tutorial index page

[lordy5]

• Add tags
  • Create tag functionality
  • Assign tags to tutorials
• Reorder tutorials in a logical way
• Add description for each tutorial
  • Fix documents structure by directly linking to tutorials
  • Fix listing of links
  • Add widget/bracket for each tutorial to organize
• Add search feature
• Add description for each group

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 80.77%. Comparing base (96fa753) to head (8e9c9f1).

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #3187   +/-   ##
=======================================
  Coverage   80.77%   80.77%           
=======================================
  Files         191      191           
  Lines       16897    16897           
=======================================
  Hits        13648    13648           
  Misses       3249     3249