refactor: bufferline replaced + minor styling improvements WIP

lua/plugins/style.lua

@@ -57,7 +57,7 @@ return {
 			invert_signs = false,
 			invert_tabline = false,
 			inverse = true, -- invert background for search, diffs, statuslines and errors
-			contrast = "", -- can be "hard", "soft" or empty string
+			contrast = "soft", -- can be "hard", "soft" or empty string
 			palette_overrides = {},
 			overrides = {},
 			dim_inactive = false,