fix:horizontal scroll for community projects in homepage

[ayanchoudhary]

Fixes #7548

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[ayanchoudhary]

@publiclab/reviewers please review and help with the failing build.

[codecov]

Codecov Report

Merging #7550 into master will decrease coverage by 1.81%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #7550      +/-   ##
==========================================
- Coverage   81.87%   80.06%   -1.82%     
==========================================
  Files          97       97              
  Lines        5612     5632      +20     
==========================================
- Hits         4595     4509      -86     
- Misses       1017     1123     +106     

Impacted Files	Coverage Δ
app/controllers/talk_controller.rb	100.00% <0.00%> (ø)	⬆️
app/mailers/password_reset_mailer.rb	100.00% <0.00%> (ø)	⬆️
app/channels/application_cable/channel.rb	0.00% <0.00%> (-100.00%)	⬇️
app/models/drupal_content_field_mapper.rb	100.00% <0.00%> (ø)	⬆️
app/channels/application_cable/connection.rb	0.00% <0.00%> (-100.00%)	⬇️
app/models/drupal_content_field_map_editor.rb	100.00% <0.00%> (ø)	⬆️
app/controllers/home_controller.rb	98.38% <0.00%> (ø)	⬆️
app/controllers/search_controller.rb	95.34% <0.00%> (-2.33%)	⬇️
app/models/spamaway.rb	94.87% <0.00%> (ø)	⬆️
app/services/execute_search.rb	88.88% <0.00%> (-5.56%)	⬇️
... and 49 more

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Screenshots 📸 (click to expand)

7550-test_questions.png

7550-test_embeddable_grids.png

7550-test_signup.png

7550-test_viewing_the_settings_page.png

7550-test_tag_by_author_page.png

7550-test_wiki_page_with_inline_grids.png

7550-test_stats.png

7550-test_viewing_the_dashboard.png

7550-test_searching_an_item_from_the_homepage.png

7550-test_signup_modal_form_validation.png

7550-test_tag_stats.png

7550-test_login_modal_form_validation.png

7550-test_questions_shadow.png

7550-test_login_modal.png

7550-test_profile_page.png

7550-test_comments.png

7550-test_tags.png

7550-test_signup_modal.png

7550-test_wiki.png

7550-test_methods.png

7550-test_tag_page.png

7550-test_blog_page_with_location_modal.png

7550-test_tag_wildcard.png

7550-test_signup_modal_disabled_submit_button_on_empty_username.png

7550-test_embeddable_thumbnail_grids.png

7550-test_front_page_with_navbar_search_autocomplete.png

7550-test_spam_moderation_page.png

7550-test_login.png

7550-test_viewing_the_dropdown_menu.png

7550-test_viewing_question_post.png

7550-test_mobile_displays.png

7550-test_simple-data-grapher_powertag.png

7550-test_front.png

7550-test_question_page.png

7550-test_tag_contributors_page.png

7550-test_blog.png

7550-test_people.png

7550-test_wiki_revisions.png

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[sssash18]

@ayanchoudhary Please close and reopen the PR to restart travis as the failures are not related to your changes.Thanks