Organization index and show

[martinemde]

Index is a section of the dashboard.
Show is the organization view page.

We may need to separate out the private and public view of an org, but this is a rough start.

[codecov]

Codecov Report

Attention: Patch coverage is 22.58065% with 48 lines in your changes missing coverage. Please review.

Project coverage is 16.54%. Comparing base (01bc612) to head (ac32613).

Files with missing lines	Patch %	Lines
app/views/components/card/timeline_component.rb	0.00%	28 Missing ⚠️
app/models/organization.rb	0.00%	9 Missing ⚠️
app/controllers/organizations_controller.rb	55.55%	8 Missing ⚠️
app/helpers/layout_hepler.rb	40.00%	3 Missing ⚠️

Additional details and impacted files

@@             Coverage Diff             @@
##           master    #5187       +/-   ##
===========================================
- Coverage   96.06%   16.54%   -79.53%     
===========================================
  Files         430      433        +3     
  Lines        9132    11446     +2314     
===========================================
- Hits         8773     1894     -6879     
- Misses        359     9552     +9193     

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