[Enhancement] Allow setting preference for video/audio codec (#255)

* [WIP] started on codec parser

* Added codec preferences to settings model

* [WIP] added basic codec preference fields to settings form

* Hooked up the backend portion of the codec preference work

* Added codec settings to frontend

* Ensured you can remove codec data

lib/pinchflat_web/controllers/media_items/media_item_html/media_item_form.html.heex

@@ -9,7 +9,7 @@
     Oops, something went wrong! Please check the errors below.
   </.error>
 
-  <h3 class=" text-2xl text-black dark:text-white">
+  <h3 class="text-2xl text-black dark:text-white">
     General Options
   </h3>