Cannot edit dashboard filter mapping on mobile

[WiNloSt]

Fixes #23962

This PR fixes the issue by wrapping the dashboard content down at the bottom.

Before

Desktop

Mobile

1. Before editing

2. Clicked editing. You could see the dashboard width is almost 0 (shrunk via flex-shrink)

After

Desktop (looks the same)

Mobile

1. Before editing

2. Clicked editing

3. Scroll

[codecov[bot]]

Codecov Report

Merging #24547 (863d574) into master (a54b36b) will decrease coverage by 0.00%. The diff coverage is 0.00%.

@@            Coverage Diff             @@
##           master   #24547      +/-   ##
==========================================
- Coverage   65.27%   65.26%   -0.01%     
==========================================
  Files        2775     2787      +12     
  Lines       85123    85154      +31     
  Branches    10497    10508      +11     
==========================================
+ Hits        55563    55575      +12     
- Misses      25228    25246      +18     
- Partials     4332     4333       +1     

Flag	Coverage Δ
front-end	46.42% <0.00%> (-0.01%)	:arrow_down:

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
...ashboard/components/Dashboard/Dashboard.styled.jsx	0.00% <ø> (ø)
...tend/src/metabase/dashboard/components/Sidebar.jsx	0.00% <ø> (ø)
...rc/metabase/dashboard/components/Sidebar.styled.ts	0.00% <0.00%> (ø)
...etabase/parameters/components/ParameterSidebar.jsx	0.00% <ø> (ø)
...e/parameters/components/ParameterSidebar.styled.ts	0.00% <0.00%> (ø)
...alizations/components/ChartClickActions.styled.tsx	16.66% <0.00%> (-33.34%)	:arrow_down:
...tend/src/metabase/containers/ItemPicker.styled.tsx	75.00% <0.00%> (-25.00%)	:arrow_down:
frontend/src/metabase/containers/ItemPicker.jsx	64.00% <0.00%> (-0.48%)	:arrow_down:
frontend/src/metabase/redux/metadata.js	46.15% <0.00%> (-0.35%)	:arrow_down:
...nd/src/metabase/query_builder/actions/core/core.js	22.61% <0.00%> (-0.28%)	:arrow_down:
... and 34 more

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[WiNloSt]

Closing this as there're some fundamental questions we need to answer first from the product's perspective. Also, it's only a visual bug and isn't a regression.