Minimal UI 0.2.2: Improved hover and shaking stability

• Bugfix: Fixed a wrong border-width setting causing unwanted shakes (Thanks @soulcake)
• Bugfix: Left submenu should now appear visible and stay in fixed position
• Bugfix: Fixed hover area not being detected with small icons in some displays (Thanks @drew for reporting)
• Bugfix: Left side submenu controls don't move when hovering anymore