Fix diagnostic with "body block braces"

[DanielRosenwasser]

We have a diagnostic

Remove all incorrect body block braces.

Typically we say "block body" not "body block". Perhaps we could make it less confusing by writing "function body braces"

[a-tarasyuk]

@DanielRosenwasser I think this QF applied only for arrow functions, also there is QF all message

Diagnostics.Remove_block_body_braces
Diagnostics.Remove_all_incorrect_body_block_braces

Maybe make sense to point out in QF about arrow functions? Something like so

Remove braces surrounding arrow body
Remove braces surrounding arrow body from all functions

[DanielRosenwasser]

I like

Remove braces from arrow function body.
Remove braces from all arrow function bodies with relevant issues.

[DanielRosenwasser]

Eh, I mean, I don't totally like them, but they'll do...

[a-tarasyuk]

@DanielRosenwasser Thanks

[rajatdiptabiswas]

Is this issue still available to be worked on?
If yes, would you kindly let me know what exactly needs to be done so that I can try working on it?