fix: loaders are not visible on some pages

[adrianthedev]

Loaders on new, show and create views are not visible. This fixes that

[github-actions]

[rubocop] _{reported by reviewdog 🐶}
Layout/EmptyLinesAroundMethodBody: Extra empty line detected at method body beginning.

[codecov]

Codecov Report

Merging #190 (7529da0) into master (8a13028) will increase coverage by 0.61%.
The diff coverage is 93.80%.

@@            Coverage Diff             @@
##           master     #190      +/-   ##
==========================================
+ Coverage   96.03%   96.64%   +0.61%     
==========================================
  Files          87      133      +46     
  Lines        1890     3668    +1778     
==========================================
+ Hits         1815     3545    +1730     
- Misses         75      123      +48     

Impacted Files	Coverage Δ
lib/avo/app/tools_manager.rb	50.00% <50.00%> (ø)
lib/avo/app/action.rb	80.48% <80.48%> (ø)
lib/avo/engine.rb	85.71% <85.71%> (ø)
lib/avo/app/fields/boolean_field.rb	93.75% <87.50%> (ø)
lib/avo/app/app.rb	89.18% <89.18%> (ø)
lib/avo/app/resource.rb	90.35% <90.35%> (ø)
app/controllers/avo/resources_controller.rb	90.59% <90.59%> (ø)
lib/avo/app/fields/key_value_field.rb	90.90% <90.90%> (ø)
.../avo/app/fields/field_extensions/has_field_name.rb	91.66% <91.66%> (ø)
...lds/field_extensions/visible_in_different_views.rb	92.85% <92.85%> (ø)
... and 175 more

---

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 5a85e7c...7529da0. Read the comment docs.

[mihaimdm22]

Loader has different top margins.

[adrianthedev]

I fixed that by displaying the filters and search bar. This way it is larger on Index but looks natural.