`comment-add` value is different from `clojure-mode`

[Andre0991]

comment-add is 1 in clojure-mode 1, whereas clojure-ts-mode does not set it in clojure-ts-mode-variables. This affects how many ; are added when using comment-region (see the full explanation below).

I guess it would make sense to simply reproduce clojure-mode settings.
I can open a PR for that, if it's the case.

What do you think?

Thanks!

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comment-add is a variable defined in ‘newcomment.el’.

Its value is 1
Local in buffer clojure-mode.el; global value is 0

How many more comment chars should be inserted by ‘comment-region’.
This determines the default value of the numeric argument of ‘comment-region’.
The ‘plain’ comment style doubles this value.

[dannyfreeman]

sorry for very late comment. Feel free to open up a PR, if not I can do it at some point. Thank you for opening up the issue.