Catppuccin theme active tab difficult to see / hovered element UI is inconsistent.

[sjclayton]

The 'Unofficial' Catppuccin theme has very poor contrast on the actively selected tab, making it difficult to see which tab is currently selected. Making the active tab highlight the same as the hover highlight would be much better looking. As well the hover for tabs and the hover for other buttons in the sidebar is inconsistent (ie. the size, shape and colour of the hovered elements does not match).

1. Shows how dark active tab is in relation to inactive tabs (second tab is the active tab)
   

2. Shows UI inconsistencies between tab buttons and other buttons