refactor sample code to the ui kit

[sachaarbonel]

[codecov[bot]]

Codecov Report

Merging #196 (01b02cf) into master (b9e51b7) will decrease coverage by 0.53%. The diff coverage is 56.52%.

:exclamation: Current head 01b02cf differs from pull request most recent head a831537. Consider uploading reports for the commit a831537 to get more accurate results

@@            Coverage Diff             @@
##           master     #196      +/-   ##
==========================================
- Coverage   78.44%   77.90%   -0.54%     
==========================================
  Files         139      142       +3     
  Lines        4575     4685     +110     
==========================================
+ Hits         3589     3650      +61     
- Misses        986     1035      +49     

Impacted Files	Coverage Δ
...m_feed/lib/src/client/stream_feed_client_impl.dart	93.70% <ø> (-0.09%)	:arrow_down:
..._flutter/lib/src/widgets/buttons/reply_button.dart	77.41% <0.00%> (ø)
...ream_feed_flutter_core/lib/src/bloc/feed_bloc.dart	78.78% <0.00%> (-5.09%)	:arrow_down:
...tream_feed_flutter_core/lib/src/bloc/provider.dart	72.22% <ø> (ø)
...ream_feed_flutter_core/lib/src/flat_feed_core.dart	61.53% <ø> (ø)
...feed_flutter_core/lib/src/reactions_list_core.dart	67.64% <ø> (ø)
...tream_feed_flutter_core/lib/src/upload/states.dart	92.00% <ø> (ø)
...m_feed_flutter/lib/src/widgets/buttons/follow.dart	54.54% <54.54%> (ø)
...ter/lib/src/widgets/pages/followers_list_view.dart	58.82% <58.82%> (ø)
...ges/stream_feed_flutter/lib/src/widgets/stats.dart	72.41% <72.41%> (ø)
... and 1 more

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