Split sendCreateCommentAction as two parts, one for update comment related informations, another for actions

[lunny]

As title.

[codecov-io]

Codecov Report

Merging #8784 into master will decrease coverage by 0.02%.
The diff coverage is 47.61%.

@@            Coverage Diff             @@
##           master    #8784      +/-   ##
==========================================
- Coverage   41.27%   41.24%   -0.03%     
==========================================
  Files         544      544              
  Lines       69839    69855      +16     
==========================================
- Hits        28824    28812      -12     
- Misses      37328    37359      +31     
+ Partials     3687     3684       -3

Impacted Files	Coverage Δ
models/review.go	58.46% <0%> (-1.31%)	⬇️
models/issue_comment.go	47.86% <55.55%> (-0.12%)	⬇️
modules/indexer/indexer.go	44.73% <0%> (-10.53%)	⬇️
modules/avatar/avatar.go	48% <0%> (-6%)	⬇️
models/unit.go	62.16% <0%> (-5.41%)	⬇️
models/repo_indexer.go	66.54% <0%> (-1.82%)	⬇️
modules/log/event.go	64.61% <0%> (-1.03%)	⬇️
routers/repo/view.go	37.71% <0%> (-0.88%)	⬇️
modules/sync/unique_queue.go	89.28% <0%> (+10.71%)	⬆️

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