minor fixes to not export default format

app/library/YTDLPOpts.py

@@ -129,7 +129,7 @@ class YTDLPOpts(metaclass=Singleton):
             self.presets_opts = {}
             self._item_opts = {}
 
-        if "format" in data and "not_set" == data["format"]:
+        if "format" in data and data["format"] in ["not_set", "default"]:
             data["format"] = None
 
         return data

ui/components/PresetForm.vue

@@ -113,8 +113,7 @@
                     <span>The yt-dlp <code>[--format, -f]</code> video format code. see <NuxtLink
                         href="https://github.com/yt-dlp/yt-dlp?tab=readme-ov-file#format-selection" target="blank">this
                         url</NuxtLink> for more info.</span>. Note, as this key is required, you can set the value to
-                    <code>not_set</code>
-                    to use the default yt-dlp format.
+                    <code>default</code> to let <code>yt-dlp</code> choose the best format.
                   </span>
                 </div>
               </div>

ui/pages/tasks.vue

@@ -386,8 +386,8 @@ const exportItem = async item => {
       args[key] = preset.args[key]
     }
   }
-
-  if (preset.format !== 'not_set' && preset.format) {
+  const defaults = ['default', 'not_set']
+  if (preset.format && !defaults.includes(info.format)) {
     args.format = preset.format
   }
 
@@ -421,7 +421,7 @@ const exportItem = async item => {
   }
 
   data['_type'] = 'task'
-  data['_version'] = '1.0'
+  data['_version'] = '1.1'
 
   return copyText(base64UrlEncode(JSON.stringify(data)));
 }