Handle categories

[steverydz]

Done

Handled the categories on the beta store page

How to QA

• Go to https://snapcraft-io-4487.demos.haus/beta-store
• Check that by default featured snaps are shown
• Check that searching, filtering and changing categories works as expected

[webteam-app]

Demo starting at https://snapcraft-io-4487.demos.haus

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (c26d71b) 79.78% compared to head (73b032c) 68.43%.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #4487       +/-   ##
===========================================
- Coverage   79.78%   68.43%   -11.35%     
===========================================
  Files         207      112       -95     
  Lines       10476     3583     -6893     
  Branches      926      926               
===========================================
- Hits         8358     2452     -5906     
+ Misses       1994     1007      -987     
  Partials      124      124               

Flag	Coverage Δ
javascript	68.43% <ø> (ø)
python	?

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[Lukewh]

👍 LGTM