do not show unpublished components. delegate title in surveys to the questionnaire

[microstudi]

• Fixes presenter for surveys (title is not present in the locator)
• Finds url in surveys via main_proxy as this component is not registered as a resource in Decidim (probably a Decidim bug)
• only shows published components/participatory spaces
• Fixes cache for latests posts
• Optimizes workflows

[codecov]

Codecov Report

Merging #25 (1162c21) into main (2b37170) will increase coverage by 0.76%.
The diff coverage is 91.30%.

@@            Coverage Diff             @@
##             main      #25      +/-   ##
==========================================
+ Coverage   68.03%   68.79%   +0.76%     
==========================================
  Files          31       32       +1     
  Lines         513      532      +19     
==========================================
+ Hits          349      366      +17     
- Misses        164      166       +2     

Impacted Files	Coverage Δ
...im/alternative_landing/calendar_event_presenter.rb	66.66% <0.00%> (-2.57%)	⬇️
...lternative_landing/content_blocks/calendar_cell.rb	100.00% <100.00%> (ø)
...e_landing/content_blocks/latest_blog_posts_cell.rb	96.66% <100.00%> (+0.11%)	⬆️
...ternative_landing/needs_content_blocks_snippets.rb	100.00% <100.00%> (ø)
lib/decidim/alternative_landing/engine.rb	100.00% <100.00%> (ø)

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