chore(web): add line-height option to story text block

[airslice]

Overview

This PR adds line-height option (1.0-2.0) to story text block.
This PR also fixes a bug which leads to crash sometimes.

What I've done

What I haven't done

How I tested

Which point I want you to review particularly

Memo

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[codecov]

Codecov Report

Merging #703 (2df979e) into main (3e3549b) will decrease coverage by 0.09%.
Report is 1 commits behind head on main.
The diff coverage is 19.73%.

❗ Current head 2df979e differs from pull request most recent head 71db694. Consider uploading reports for the commit 71db694 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #703      +/-   ##
==========================================
- Coverage   28.21%   28.13%   -0.09%     
==========================================
  Files        1569     1568       -1     
  Lines      171521   171168     -353     
  Branches     3818     3820       +2     
==========================================
- Hits        48401    48159     -242     
+ Misses     122031   121920     -111     
  Partials     1089     1089              

Flag	Coverage Δ
web	26.78% <19.73%> (-0.11%)	⬇️
web-beta	26.78% <19.73%> (-0.11%)	⬇️
web-classic	26.78% <19.73%> (-0.11%)	⬇️
web-utils	26.78% <19.73%> (-0.11%)	⬇️

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

Files	Coverage Δ
...b/lexical/RichTextEditor/plugins/ToolbarPlugin.tsx	12.45% <19.73%> (+0.70%)	⬆️

... and 12 files with indirect coverage changes