Add task to index current database state

modules/joex/src/main/resources/reference.conf

@@ -368,6 +368,9 @@ docspell.joex {
   # Configuration of the full-text search engine.
   full-text-search {
     enabled = true
+    migration = {
+      index-all-chunk = 10
+    }
     solr = {
       url = "http://localhost:8983/solr/docspell_core"
     }