[Backport] Change layout on homepage if feed debates and proposals are enabled

[decabeza]

References

This is a backport of AyuntamientoMadrid#1859

Background

Admin users can enable show proposals and debates feed on homepage from /admin/homepage but if only enable one the layout looks empty with too much blank space.

Objectives

Change layout on homepage if feed debates and proposals are enabled. Now show the content with 100% width if only proposals or debates are enabled.

Visual Changes

Feeds proposals and debates enabled (same layout)

Only feed proposals, 100% width!

Only feed debates, 100% width!

[milovanderlinden]

You can see in the travis log that there is a failed test:

Failures:
  1) Legislation Proposals Random pagination Each user has a different and consistent random proposals order
     Failure/Error: expect(legislation_proposals_order).to eq(@first_user_proposals_order)
       expected: ["legislation_proposal_9", "legislation_proposal_9_votes", "legislation_proposal_5", "legislation_pro...osal_3", "legislation_proposal_3_votes", "legislation_proposal_11", "legislation_proposal_11_votes"]
            got: ["legislation_proposal_6", "legislation_proposal_6_votes", "legislation_proposal_10", "legislation_pr...osal_12", "legislation_proposal_12_votes", "legislation_proposal_4", "legislation_proposal_4_votes"]
       (compared using ==)
     # ./spec/features/legislation/proposals_spec.rb:51:in `block (4 levels) in <top (required)>'
     # ./spec/sessions_helper.rb:2:in `in_browser'
     # ./spec/features/legislation/proposals_spec.rb:49:in `block (3 levels) in <top (required)>'

Please make sure this test passes when there are no proposals.

[decabeza]

Hi @milovanderlinden,

This failed spec it's a Flaky spec (we have an issue to fix it on AyuntamientoMadrid#1659) and is not related with the changes of this PR.

😉

[javierm]

@milovanderlinden The mentioned failure should be fixed by #3321. Thanks!