Add missing 'voca' category to regex

src/database/disk.sql

@@ -39,7 +39,7 @@ CREATE TABLE IF NOT EXISTS kara_category
   );
 
 INSERT OR REPLACE INTO kara_category (id, name) VALUES
-  (1, 'vo'), (2, 'va'), (3, 'amv'), (4, 'cdg'), (5, 'autres'), (6, 'vocaloid');
+  (1, 'vo'), (2, 'va'), (3, 'amv'), (4, 'cdg'), (5, 'autres'), (6, 'vocaloid'), (7, 'vtuber');
 
 CREATE TABLE IF NOT EXISTS language
   ( id   INTEGER PRIMARY KEY

src/mkv/write.c

@@ -155,7 +155,7 @@ metadata_from_path(char *const mkvfile, struct kara_metadata *meta)
 
     /* TODO: Import types and categories from the db */
     static const char *rgx =
-        "^/(.+)/(vo|va|amv|cdg|autres|vtuber)/"
+        "^/(.+)/(vo|va|amv|cdg|autres|vtuber|vocaloid)/"
         "(jp|fr|en|ru|sp|it|ch|latin|multi|undefined)/(.+)/"
         "(.+) - (OP|ED|IS|AMV|PV|MV|LIVE)([[:digit:]]*) - (.+)\\.mkv$";