chore: update resource internal path migrator

store/db/postgres/migration/prod/0.19/00_resource.sql

@@ -1,19 +0,0 @@
--- Make resource internal_path relative (to MEMOS_DATA) and replace backslash with slash
--- This is a best-effort approach, but even if it fails, it won't break assets from loading
-UPDATE resource
-SET
-  internal_path = REPLACE (internal_path, '\', '/')
-WHERE
-  internal_path LIKE '%assets\\%';
-
-UPDATE resource
-SET
-  internal_path = REPLACE (
-    internal_path,
-    SUBSTRING(
-      internal_path
-      FROM
-        1 FOR POSITION('/assets' IN internal_path)
-    ),
-    ''
-  );