Merge branch 'main' into glitch-soc/merge-upstream

Conflicts:
- `package.json`:
  Not really a conflict, just a glitch-soc-only dependency textually too close
  to an updated upstream one.
- `yarn.lock`:
  Not really a conflict, just a glitch-soc-only dependency textually too close
  to an updated upstream one.

app/controllers/media_controller.rb

@@ -28,7 +28,12 @@ class MediaController < ApplicationController
   private
 
   def set_media_attachment
-    @media_attachment = MediaAttachment.attached.find_by!(shortcode: params[:id] || params[:medium_id])
+    id = params[:id] || params[:medium_id]
+    return if id.nil?
+
+    scope = MediaAttachment.local.attached
+    # If id is 19 characters long, it's a shortcode, otherwise it's an identifier
+    @media_attachment = id.size == 19 ? scope.find_by!(shortcode: id) : scope.find_by!(id: id)
   end
 
   def verify_permitted_status!