Feature/committee page cleanup

[noahmanger]

This contains a whole bunch of fixes to round out the work that began in https://github.com/18F/openFEC-web-app/pull/2106 to bring greater consistency to profile pages.

1. Page organization consistency

First, for groups that have additional forms of spending other than schedule B disbursements — i.e. groups that make IEs, electioneering comms, or communication costs — those tabs are now also organized under the new "Spending" tab:

2. Unified heading style

Second, it unifies the heading style used throughout these pages. Previously the titles and links to filter data varied depending on the table. Now, we use this pattern everywhere, using the title + button + border lockup we use elsewhere on the site:

3. Misc. cleanup and fixes

• Set the cycle select on committee pages to be the same fixed-width as it is on candidate pages
• Only load state map data when the tab is loaded, preventing an extra unnecessary API call on the initial page load (resolves https://github.com/18F/openFEC-web-app/issues/2039 @LindsayYoung )
• Uses the dynamic coverage dates for the total receipts and disbursement figures on candidate pages, rather than hard-coded values
• Adds "transaction date" tags to data tables on candidate and committee pages that show the first and last date of the cycle:
• Removes an unnecessary tabs.html macro that we were using sometimes and not others, so it tidied the codebase up a little to just get rid of it.

Much thanks to @jenniferthibault on pairing through the nitty gritty details of this.

[codecov-io]

Codecov Report

Merging #2113 into develop will increase coverage by 0.59%. The diff coverage is 33.33%.

@@             Coverage Diff             @@
##           develop    #2113      +/-   ##
===========================================
+ Coverage    55.02%   55.62%   +0.59%     
===========================================
  Files           48       48              
  Lines         3291     3380      +89     
  Branches       388      392       +4     
===========================================
+ Hits          1811     1880      +69     
- Misses        1464     1484      +20     
  Partials        16       16

Impacted Files	Coverage Δ
openfecwebapp/views.py	41.22% <0%> (-0.32%)	:arrow_down:
static/js/modules/cycle-select.js	92.3% <100%> (ø)	:arrow_up:
static/js/legal/LegalSearch.js	87.5% <0%> (+4.74%)	:arrow_up:
openfecwebapp/api_caller.py	60.8% <0%> (+5.11%)	:arrow_up:

---

Continue to review full report at Codecov.

Legend - Click here to learn more Δ = absolute <relative> (impact), ø = not affected, ? = missing data Powered by Codecov. Last update 42c2a49...1b44cc1. Read the comment docs.

[xtine]

This is great! Nice to unify the headers, and also always nice to remove code (tabs.html). 👍