tweak gui font settings some more

mainly aimed at neovide again. but the guifont setting can be set
outside of that neovide check so as to apply to any other neovim gui
app i suppose

lua/options.lua

@@ -62,10 +62,11 @@ vim.opt.cursorline = true
 -- Minimal number of screen lines to keep above and below the cursor.
 vim.opt.scrolloff = 10
 
+vim.opt.guifont = 'Cascadia Mono:h12:#h-slight'
+vim.opt.linespace = -1
+
 -- Neovide specific options
 if vim.g.neovide then
-  vim.o.guifont = 'Cascadia Mono:h11'
-
   vim.g.neovide_position_animation_length = 0.15
   vim.g.neovide_cursor_animation_length = 0.03
   vim.g.neovide_scroll_animation_length = 0.2