map editing permissions initial

[ViditChitkara]

closes #893

[codeclimate[bot]]

Code Climate has analyzed commit 78980d75 and detected 3 issues on this pull request.

Here's the issue category breakdown:

Category	Count
Complexity	1
Style	2

View more on Code Climate.

[ViditChitkara]

@jywarren I'm starting with this. We still need some more details on how to put the toggle permission button on the map sidebar. @sashadev-sky shared some cool ideas #893 . If you could have a look at this and the issue as well! Thanks.

[codecov[bot]]

Codecov Report

Merging #937 into main will decrease coverage by 4.41%. The diff coverage is 21.42%.

@@            Coverage Diff             @@
##             main     #937      +/-   ##
==========================================
- Coverage   72.71%   68.29%   -4.42%     
==========================================
  Files          35       35              
  Lines        1356     1369      +13     
==========================================
- Hits          986      935      -51     
- Misses        370      434      +64

Impacted Files	Coverage Δ
app/controllers/maps_controller.rb	85.12% <18.18%> (-6.77%)	:arrow_down:
app/models/map.rb	56.66% <33.33%> (-36.54%)	:arrow_down: