fix(alert): resolve more info missing from discord alert (#4771)

* Fixing missing more Info

* minor bug

---------

Co-authored-by: Hornochs <stephan.schaffner@check24.de>
Co-authored-by: Daniel Gibbs <me@danielgibbs.co.uk>

lgsm/modules/alert_discord.sh

@@ -46,6 +46,11 @@ json=$(
 					"name": "Server Time",
 					"value": "$(date)",
 					"inline": true
+				},
+				{
+					"name": "More info",
+					"value": "${alerturl}",
+					"inline": true
 				}
 EOF
 )
@@ -63,7 +68,7 @@ EOF
 	)
 fi
 
-if [ -n "{alerturl}" ]; then
+if [ -n "${alerturl}" ]; then
 	json+=$(
 		cat << EOF
 				,