Featured Mappers Mobile Responsive fix

[divyabaid16]

Fixes #800 (<=== Add issue number here)

Make sure these boxes are checked before your pull request (PR) is ready to be reviewed and merged. Thanks!

Before:

After:

• PR is descriptively titled 📑 and links the original issue above 🔗
• [] tests pass -- look for a green checkbox ✔️ a few minutes after opening your PR -- or run tests locally with rake test
• code is in uniquely-named feature branch and has no merge conflicts 📁
• screenshots/GIFs are attached 📎 in case of UI updation
• ask @publiclab/mapknitter-reviewers for help, in a comment below

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Thanks!

[codeclimate]

Code Climate has analyzed commit cf8a5c1 and detected 0 issues on this pull request.

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[codecov]

Codecov Report

Merging #802 into main will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##             main     #802   +/-   ##
=======================================
  Coverage   72.43%   72.43%           
=======================================
  Files          35       35           
  Lines        1335     1335           
=======================================
  Hits          967      967           
  Misses        368      368

[jywarren]

This is awesome! I think CodeCov is asking that any new PRs have at least the same coverage as the rest of the project. Which in this case maybe doesn't make sense. But we can add a functional or integration test perhaps to improve coverage of this page?