Fix length of post_report.original_post_name db field (fixes #2311) (#2315)

migrations/2022-06-13-124806_post_report_name_length/down.sql

@@ -0,0 +1 @@
+alter table post_report alter column original_post_name type varchar(100);

migrations/2022-06-13-124806_post_report_name_length/up.sql

@@ -0,0 +1,2 @@
+-- adjust length limit to match post.name
+alter table post_report alter column original_post_name type varchar(200);