Look at a better way to present Related studies

[bcordis]

Make a better way to present related studies instead of a drop-down menu. Something like a list at the end of the sermon info.

[bcordis]

Implemented in PR #1063 and merged to development.

Enhanced Related Studies now uses a weighted multi-dimension scoring algorithm:

• Same series: 3 points
• Same teacher: 2 points
• Shared topics: 2 points each
• Same scripture book: 1 point each
• Metakey keyword overlap: 1 point each

Results are displayed in a responsive Bootstrap 5 card grid (1 col mobile, 2 col tablet, 3 col desktop) instead of the old dropdown. Each card shows the message title, teacher name, date, and optional thumbnail with a direct link to the sermon detail.

The number of related messages is configurable via the related_limit template setting (1-20, default 5).