feat: move templates into AFFiNE

[doouding]

Related to toeverything/blocksuite#6156

[graphite-app]

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (db8e49b) 64.58% compared to head (00a280d) 64.48%.

❗ Current head 00a280d differs from pull request most recent head 9b99793. Consider uploading reports for the commit 9b99793 to get more accurate results

Additional details and impacted files

@@            Coverage Diff             @@
##           canary    #5747      +/-   ##
==========================================
- Coverage   64.58%   64.48%   -0.10%     
==========================================
  Files         339      339              
  Lines       19244    19244              
  Branches     1633     1632       -1     
==========================================
- Hits        12428    12409      -19     
- Misses       6600     6619      +19     
  Partials      216      216              

Flag	Coverage Δ
server-test	70.79% <ø> (-0.13%)	⬇️
unittest	46.23% <ø> (ø)

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