Add links to tiles

[fblupi]

Closes #47

Allow to configure links in tiles:

So the titles become links:

Screen.Recording.2023-09-19.at.16.22.52.mov

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.11% 🎉

Comparison is base (836b8ea) 87.12% compared to head (16f714d) 87.24%.

❗ Current head 16f714d differs from pull request most recent head 7b61b5a. Consider uploading reports for the commit 7b61b5a to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #49      +/-   ##
==========================================
+ Coverage   87.12%   87.24%   +0.11%     
==========================================
  Files          33       33              
  Lines         536      541       +5     
==========================================
+ Hits          467      472       +5     
  Misses         69       69              

Files Changed	Coverage Δ
...m/alternative_landing/content_blocks/tiles_cell.rb	100.00% <100.00%> (ø)
...ve_landing/content_blocks/content_blocks_shared.rb	90.24% <100.00%> (+0.12%)	⬆️

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