Add Assignee

[ninjaprox]

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Types of Changes

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• [x] New addition to list
• [ ] Fixing bug in existing item in list
• [ ] Removing item from list
• [ ] Changing structure (organization) of list

Proposed Changes

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Assignee is a simple, instant app switcher. No more mashing Command-Tab to switch to different apps, just assign a shortcut to an app and switch to it instantly

PR Checklist

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• [x] I have read the CONTRIBUTING guide
• [x] I have explained why this PR is important
• [x] I have added necessary documentation (if appropriate)

Further Comments

If this is a relatively large or complex change, kick off the discussion by explaining why you chose the solution you did and what alternatives you considered, etc...

[jaywcjlove]

@ninjaprox The function is too simple to make any sense