upgrade to Decidim v0.30

[microstudi]

fixes #388

• fixes 1. Image support for the RichText editor #389
• fixes 2. Auto-save for surveys and forms #392
• fixes 6. Fullscreen Iframe component #394
• fixes 7. Live support chat #395
• fixes 8. Custom CSS applied only according scoped restrictions #396
• fixes 9. Change the main menu of Decidim entirely! #397
• fixes 12. Custom Redirections (or URL shortener feature) #400
• fixes 13. Custom validation rules for title and body in proposals #401
• fixes 14. Admin accountability #402
• fixes 15. Additional proposal sortings #403
• fixes 16.1 GraphQL Types for weighted voting #405
• fixes 19. User custom timezone #408

[codecov]

Codecov Report

Attention: Patch coverage is 16.66667% with 5 lines in your changes missing coverage. Please review.

Project coverage is 48.95%. Comparing base (ccb89b5) to head (ba55899).

Files with missing lines	Patch %	Lines
...m_awesome/proposals/proposal_serializer_methods.rb	0.00%	3 Missing ⚠️
...cidim_awesome/admin/custom_redirects_controller.rb	0.00%	1 Missing ⚠️
...m_awesome/proposals/private_proposal_serializer.rb	0.00%	1 Missing ⚠️

❗ There is a different number of reports uploaded between BASE (ccb89b5) and HEAD (ba55899). Click for more details.

HEAD has 4 uploads less than BASE

Flag	BASE (ccb89b5)	HEAD (ba55899)
	5	1

Additional details and impacted files

@@             Coverage Diff             @@
##             main     #387       +/-   ##
===========================================
- Coverage   97.29%   48.95%   -48.35%     
===========================================
  Files         146      137        -9     
  Lines        3735     3495      -240     
===========================================
- Hits         3634     1711     -1923     
- Misses        101     1784     +1683     

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