Updated the version from 1.1 to 1.2
Renamed the header to "Slint Royalty-free Desktop, Mobile, and Web Applications License"
Added definition of "Mobile Application" and grant of right
Moved "Limitations" to 3rd section and "License Conditions - Attributions" to 2nd section
Added flexibility to choose between showing "MadeWithSlint" as a dialog/splash screen or on a public webpage
Moved the para on copyright notices to section under "Limitations"
This allows the user to use the scroll wheel to scroll through the tabs.
In order to do this I have made created a common TabBarBase and let all
other implementations of TabBar* inherit from it. I also used slint-lsp
to format the files (it did not like the inline comments).
