feat: set TelescopeNormal to default fg and bg colors (#137)

When transparency is enabled the background for Telescope seems to be
just black. This this doesn't blend well with the rest of the theme in
transparency mode. While the default fg and bg are not transparent, they
do provide a better contrast and seems easier on the eye.

lua/tokyonight/theme.lua

@@ -303,7 +303,8 @@ function M.setup(config)
     GitSignsDelete = { fg = c.gitSigns.delete }, -- diff mode: Deleted line |diff.txt|
 
     -- Telescope
-    TelescopeBorder = { fg = c.border_highlight },
+    TelescopeBorder = { fg = c.border_highlight, bg = c.bg_float },
+    TelescopeNormal = { fg = c.fg, bg = c.bg_float },
 
     -- NvimTree
     NvimTreeNormal = { fg = c.fg_sidebar, bg = c.bg_sidebar },