avante plugin related cleanup

lua/plugins/img-clip.lua

@@ -2,8 +2,14 @@ return {
   "HakonHarnes/img-clip.nvim",
   event = "BufEnter",
   opts = {
-    -- add options here
-    -- or leave it empty to use the default settings
+    default = {
+      embed_image_as_base64 = false,
+      prompt_for_file_name = false,
+      drag_and_drop = {
+        insert_mode = true,
+      },
+      use_absolute_path = true,
+    },
   },
   keys = {
     -- suggested keymap