Some improvements to the vertical tab bar

[RyanK1729]

Overall, I am finding that Floorp is very usable and I love all the customization options, though there are just a couple of QoL improvements I can immediately think of just jumping into using it.

For the vertical tab bar, specifically when it hides itself, I find that performing basic functions requires quite a lot of mouse movement. For example, to close a tab you need to take your mouse all the way to the sidebar, wait for it to expand, then move your mouse to the X on the other side of it. While its a very minor thing, I do wonder if it would be possible to have the option to have the X appear either on the left side so that you can close tabs without needing to move your mouse back at all, or at the very least on the left side, just to the right of the icon (so that you aren't immediately hovering over the X).

Second, the menu where the new tab/list tabs/floorp view is on the bottom of the panel. Generally, unless you have an insane number of tabs open at once, everything else will be at the top of the panel. I wonder if it would be possible to have the option to put these on top as well, just so everything you would need is all in one corner. I think it would just streamline the experience.

Here's a quick mockup: