www/otter-browser: 0.9.09 -> 0.9.10

• added initial support for User Scripts;
• added Addons Manager;
• added alternative display mode and support for optional headers for URL completion in address field;
• many enhancements in experimental backend for QtWebEngine (Blink): o added support for entering full screen mode; o added support for content blocking; o added support for several missing actions;
• several fixes and improvements in content blocking;
• improved CMake build system (also now it is the only officially supported);
• added new backend for storing browsing history;
• many other fixes and improvements.

PR: 209279
Submitted by: groot@kde.org (kde)