Version 2.1.1

Added always on top option, that keeps windows on top of all other windows
Added support for themes
Added ability to dock settings interface to main window
Added indicator of curently selected item from list
Added ability to scroll settings tab
Added GitHub link to About tab
Added saving selected index to the state file, so that selected item can be restored upon aplication exit and load
Added PowerShell publish script to automate publishing and creating ZIP atrefacts for GitHub release
Added osx-x64 build
Merge pull request #5 from Alex-Kozachenko/readme_fix
Code and performance optimizations
Fixed windows position not loading and not saved to appstate.json