feat(*): refactor metadata handling; move metadata to backend where possible, refine client views

queries/views/media/music/genres.sql

@@ -106,6 +106,20 @@ SELECT
     WHERE pg.genres_id = g.id
   ) AS posts,
   json_build_object(
+    'title', CONCAT('Genre • ', g.name, ' • ', globals.site_name),
+    'description', LEFT(
+      regexp_replace(
+        regexp_replace(
+          regexp_replace(
+            g.description,
+            E'[*_`~#>-]', '', 'g'
+          ),
+          E'\\[(.*?)\\]\\((.*?)\\)', E'\\1', 'g'
+        ),
+        E'!\\[(.*?)\\]\\((.*?)\\)', '', 'g'
+      ),
+      250
+    ),
     'open_graph_image', (
       SELECT CONCAT('/', df_artist.filename_disk)
       FROM artists a
@@ -115,7 +129,9 @@ SELECT
         AND df_artist.filename_disk != ''
       ORDER BY a.total_plays DESC
       LIMIT 1
-    )
+    ),
+    'url', CONCAT(globals.url, g.slug),
+    'type', 'genre'
   ) AS metadata
 FROM genres g
 CROSS JOIN optimized_globals globals