fix: RP screen messages, button positions, remove animation, move footer out, use React.Fragment, lint

* feat: Fixes #390. Show shortened version if account name over 25 chars

* fix: Use text-overflow ellipsisto concat account name

* review-fix: Prevent text clipping on Linux

index.js:1446 Warning: App has a method called componentDidUnmount(). But there is no such lifecycle method. Did you mean componentWillUnmount()?

* fix: Fixes #459. Use default role for Edit menu on macOS

* refactor: Remove double quotes

* refactor: Try fix linting so single quote and not complain no-sparse-arrays

fix: Fixes #453. Show window if visible but blurred

docs: Update Readme with dependencies, guide for taskbar usage and building and debugging production

Merge pull request #440 from paritytech/luke-refactor-menu-and-no-close-minimise-window-for-taskbar-app

refactor: Update Fether menu for taskbar mode on non-macOS (add 'Quit', remove 'Close Window', remove 'Minimize') 

Fixed window size

Co-Authored-By: yjkimjunior <[email protected]>