fix: Custom layout for the scan page

[g123k]

"The same but different"

The Scan Page now uses a custom layout.
The only "visible" change: if action buttons are visible and there is not enough space for the visor, it will be shifted a little bit.

Will fix #1708 and #1794

[codecov-commenter]

Codecov Report

Merging #1908 (fae1b0d) into develop (2ea0da3) will decrease coverage by 0.93%.
The diff coverage is 15.79%.

@@            Coverage Diff             @@
##           develop   #1908      +/-   ##
==========================================
- Coverage     8.86%   7.92%   -0.94%     
==========================================
  Files          161     177      +16     
  Lines         6623    8189    +1566     
==========================================
+ Hits           587     649      +62     
- Misses        6036    7540    +1504     

Impacted Files	Coverage Δ
...h_app/lib/cards/category_cards/abstract_cache.dart	0.00% <0.00%> (ø)
...p/lib/cards/category_cards/asset_cache_helper.dart	0.00% <0.00%> (ø)
...p/lib/cards/category_cards/raster_async_asset.dart	0.00% <0.00%> (ø)
...oth_app/lib/cards/category_cards/raster_cache.dart	0.00% <0.00%> (ø)
..._app/lib/cards/category_cards/svg_async_asset.dart	0.00% <0.00%> (ø)
...smooth_app/lib/cards/category_cards/svg_cache.dart	0.00% <0.00%> (ø)
...th_app/lib/cards/data_cards/image_upload_card.dart	0.00% <0.00%> (ø)
...es/smooth_app/lib/cards/data_cards/score_card.dart	4.54% <0.00%> (-0.22%)	⬇️
...t_cards/knowledge_panels/knowledge_panel_card.dart	0.00% <0.00%> (ø)
...knowledge_panels/knowledge_panel_element_card.dart	0.00% <0.00%> (ø)
... and 132 more

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