Add .gitignore file
Show translating of clipboard contents by hotkey

Currently combination hardcoded to Ctrl+T.
Used code from https://github.com/hluk/CopyQ/tree/92ec805b41bd097cbe523c08e320e3d32fc1c511
UI settings for popup hotkey.

* Add UI settings (defaults to Ctrl+T, but disabled).
* Fix Qxt for unregister global shortcut at disable.
* Regenerate *.tm translation files.
* Small update in Russian translation.
* Delete binary translation/*.qm files and add them to .gitignore.
Merge pull request #2 from Totktonada/popup-by-hotkey

Popup by hotkey