add config option to disable the icons

lua/lib/git.lua

@@ -51,8 +51,18 @@ local unmerged = create_git_checker('^[U ][U ]')
 local renamed = create_git_checker('^R')
 local untracked = create_git_checker('^%?%?')
 
+local function get(var, fallback)
+    if vim.api.nvim_call_function('exists', { 'g:'..var }) == 1 then
+        return vim.api.nvim_get_var(var)
+    else
+        return fallback
+    end
+end
+
+local SHOW_GIT_ICON = get('lua_tree_show_git_icons', 1) == 1
+
 local function get_git_attr(path, is_dir)
-    if IS_GIT_REPO == false then return '' end
+    if IS_GIT_REPO == false or not SHOW_GIT_ICON then return '' end
     if is_dir then
         if is_folder_dirty(path) == true then return '✗ ' end
     else