Add default value to jdbc url (#11)

Co-authored-by: Ardakaz <ardakaz@duck.com>
Reviewed-on: #11
Reviewed-by: Ardakaz <ardakaz@duck.com>
Co-authored-by: ThePindabaas <thepindabaas@noreply.localhost>
Co-committed-by: ThePindabaas <thepindabaas@noreply.localhost>

src/main/resources/config.yml

@@ -1,7 +1,7 @@
 # Ignore all stealing?
 allow-stealing: false
 
-jdbc-url: ""
+jdbc-url: "./plugins/GriefAlert/database.db"
 
 # Breaking these blocks don't cause alerts. (Material)
 excluded-blocks: