#### What type of PR is this?
/area ui
/kind bug
/milestone 2.21.x
#### What this PR does / why we need it:
Fix pending comments calculation in post list item
#### Does this PR introduce a user-facing change?
```release-note
None
```
#### What type of PR is this?
/area ui
/kind cleanup
#### What this PR does / why we need it:
Upgrade Prettier and related plugins, and simplify Prettier configuration.
Now, formatting for all packages will be managed by Prettier in the project root directory.
#### Does this PR introduce a user-facing change?
```release-note
None
```