fix: register restart commands for both lint & fmt on startup (#355)

* fix: register restart commands for both lint & fmt on startup

* chore: update readme

* formatting

* chore: sort bug did not happen anymore on tests

* fix: clear tools array on deactivation

* fix: guard format code action in case formatter tool hasn't been activated yet

* pass into constructor

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Co-authored-by: Sysix <sysix@sysix-coding.de>