Capture the global keys like Ctrl+C with code instead of Electron

[codotronix]

Currently file menu shortcut keys are captured using electrons globalShortcut.register method

globalShortcut.register('CommandOrControl+C', signalCopy)

We need to move it to FE side and identify with proper event on proper elements. Because otherwise it is preventing normal text cut / copy / paste features also e.g. in urlbar or while renaming a file / folder