feat(editor): simple table block

[zzj3720]

close: BS-2122, BS-2125, BS-2124, BS-2420, PD-2073

[graphite-app]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.08%. Comparing base (7dc470e) to head (58b9209).

Additional details and impacted files

@@             Coverage Diff             @@
##           canary    #9740       +/-   ##
===========================================
+ Coverage   52.97%   78.08%   +25.11%     
===========================================
  Files        2199      251     -1948     
  Lines       99038    30542    -68496     
  Branches    16828     1851    -14977     
===========================================
- Hits        52469    23850    -28619     
+ Misses      45131     6627    -38504     
+ Partials     1438       65     -1373     

Flag	Coverage Δ
server-test	78.08% <ø> (ø)
unittest	?

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