chore(web): fix story page/block ui/ux

[KaWaite]

Overview

What I've done

What I haven't done

How I tested

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Memo

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[codecov]

Codecov Report

Merging #701 (cd2c8e2) into main (57bbc38) will decrease coverage by 0.01%.
The diff coverage is 0.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #701      +/-   ##
==========================================
- Coverage   27.94%   27.94%   -0.01%     
==========================================
  Files        1564     1564              
  Lines      170725   170733       +8     
  Branches     3825     3825              
==========================================
  Hits        47709    47709              
- Misses     121927   121935       +8     
  Partials     1089     1089              

Flag	Coverage Δ
web	26.53% <0.00%> (-0.01%)	⬇️
web-beta	26.53% <0.00%> (-0.01%)	⬇️
web-classic	26.53% <0.00%> (-0.01%)	⬇️
web-utils	26.53% <0.00%> (-0.01%)	⬇️

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

Files Changed	Coverage Δ
.../src/beta/lib/core/StoryPanel/Page/BlockAddBar.tsx	0.00% <0.00%> (ø)
...rc/beta/lib/core/StoryPanel/PanelContent/index.tsx	0.00% <0.00%> (ø)