fix: relative path drag and drop (#81)

* fix: use relative path for drag and drop if we're not copying images

* fix: use relative path when use_absolute_path is false

lua/img-clip/paste.lua

@@ -107,6 +107,10 @@ M.paste_image_from_path = function(src_path)
 
   -- if we are not copying images, then just insert the original path
   if not config.get_opt("copy_images") then
+    if not config.get_opt("use_absolute_path") then
+      src_path = fs.relpath(src_path)
+    end
+
     if not markup.insert_markup(src_path, true) then
       util.error("Could not insert markup code.")
       return false