Separate apps for status icon

[roman-yagodin]

Due to incomplete (in GTK/GTK3 backends) and absent (WPF backend) implementation of status icon, it would be better to have separate projects for status icons apps (like R7.Webmater.StatusIcon.Gtk3, R7.Webmater.StatusIcon.WinForms)

Alternatively, does it really better to have icon in tray area instead of taskbar?

Explore: Freedesktop specification of desktop actions: https://specifications.freedesktop.org/desktop-entry-spec/desktop-entry-spec-latest.html#extra-actions

Example (from VSCode desktop file):

[Desktop Action new-empty-window]
Name=New Empty Window
Exec=/usr/share/code/code --no-sandbox --new-window %F
Icon=/usr/share/pixmaps/com.visualstudio.code.png

Related issues: #16