Angular 15 compatibility & ChangeDetection on cheatsheet toggle

[ilueckel]

This merge requests adds

• build support for Angular 15
• Changes the cheatsheet toggle to a behavior subject to make use of the build in angular change detection. Otherwise I head to evaluate to complete view for changes just to toggle the cheatsheet

[Coffee-Tea]

Hey @ilueckel! Thanks for this great PR.
Looks good for me.

Just to double-check was it tested in your project locally?

[ilueckel]

Hi @Coffee-Tea,
I published it to my local npm repository and used the package from there. So far everything is working fine

[koto]

I can confirm that the PR fixes the issue on my application using hybrid (ng1+ng2). Without the PR, the cheatsheet doesn't open until several seconds passed (change detection is not triggered). With the PR, it's instantaneous.

[Coffee-Tea]

@ilueckel @koto Thanks for your inputs here.
v15 is released https://www.npmjs.com/package/angular2-hotkeys?activeTab=versions
Could u pls test it out form npm? Thanks!

[Coffee-Tea]

hey @ilueckel could u please let me know why @types/mousetrap moved to devDeps from deps in package.json here?

I would like to clarify that in the scope of #170

Cc @negibouze

[ilueckel]

Hi,
that's my bad - I oversaw that MouseTrapInstance was exported in HotkeysService. I'll create a new pull request