[TASK] Add index to be_dashboard

Add an index to TYPO3 table be_dashboard
to prevent FTS.

Resolves: #100298
Releases: main
Change-Id: I7da4f23047c61053e646c445399edf3eb2bc2d64
Reviewed-on: https://review.typo3.org/c/Packages/TYPO3.CMS/+/78254


Reviewed-by: Stefan Bürk <stefan@buerk.tech>
Tested-by: Stefan Bürk <stefan@buerk.tech>
Reviewed-by: Thomas Hohn <tho@gyldendal.dk>
Tested-by: Thomas Hohn <tho@gyldendal.dk>
Tested-by: core-ci <typo3@b13.com>
Reviewed-by: Guido Schmechel <guido.schmechel@brandung.de>
Tested-by: Guido Schmechel <guido.schmechel@brandung.de>

typo3/sysext/dashboard/ext_tables.sql

@@ -5,6 +5,7 @@ CREATE TABLE be_dashboards (
     identifier varchar(120) DEFAULT '' NOT NULL,
     cruser_id int(11) unsigned DEFAULT 0 NOT NULL,
     title varchar(120) DEFAULT '' NOT NULL,
-    widgets text
+    widgets text,
+    KEY identifier (identifier)
 );