More complete mouse support

[ThomasFrans]

Is your feature request related to a problem? Please describe.
Currently there are two mouse actions available: clicking at the bottom for play pause, and scrolling with the bar on the side. It would be nice if there were other options, like selecting a tab with the mouse, or playing a song with the mouse. Good mouse support would also allow new TUI users to more easily use ncspot.

Describe the solution you'd like
Some nice mouse additions would be:

• Playing a song by clicking it
• Selecting a tab by clicking it
• Scrolling through tabs by scrolling on them (expected behavior for tabs)
• Opening context menu by right clicking an item
• Mouse support inside the context menu

Additional context
I know, mouse support in a TUI, I must be crazy, but sometimes the mouse is just more fun and easier 😄. Especially during active music listening, 'Vim-ing' through the library is a bit annoying. It also feels like the current mouse support is only half functional (only for things near the edges). I was looking through the code a bit and from the limited time, I noticed it may be a bit hard to implement this without some refactoring work on the UI, because there is no relative positions for Views. If this would be a welcome addition, I'd be happy to (try and) help 🙂.

[hrkfdn]

Hey @ThomasFrans, I decided to take a look at the tab area mouse handling. Feel free to have a go at the rest if you like :)

[hrkfdn]

Hey again, I have implemented a variation of this:
Left click will open an album/playlist/etc., right click will open the context menu. I've decided against playing items directly on left click as I feel like this could be undesired, i.e. as it will clear the current queue when an item is clicked accidentally. Hope this is still useful for you.