refactor: restructure nvim icon condition and update kitty narrow_symbols

Author: fbosch

.config/kitty/kitty.conf

@@ -39,7 +39,7 @@ symbol_map U+23FB-U+23FE,U+2b58 JetBrainsMono Nerd Font Mono
 symbol_map U+F300-U+F313 JetBrainsMono Nerd Font Mono
 # Pomicons
 symbol_map U+E000-U+E00D JetBrainsMono Nerd Font Mono
-narrow_symbols codepoints
+# narrow_symbols U+E0A0-U+E0A3,U+E0B0-U+E0BF
 font_size 15
 font_family JetBrains Mono 
 disable_ligatures never

.config/nvim/lua/plugins/ui/visuals.lua

@@ -232,8 +232,12 @@ return {
 				render = function(props)
 					local is_tty = vim.env.TERM == "xterm" or vim.env.TERM == "linux"
 					local filename = vim.fn.fnamemodify(vim.api.nvim_buf_get_name(props.buf), ":t")
-					local ft_icon, ft_color = is_tty and { nil, nil }
-						or require("nvim-web-devicons").get_icon_color(filename)
+					local ft_icon, ft_color
+					if is_tty then
+						ft_icon, ft_color = nil, nil
+					else
+						ft_icon, ft_color = require("nvim-web-devicons").get_icon_color(filename)
+					end
 					local is_modified = vim.bo[props.buf].modified
 
 					local function get_git_diff()