Use text() when retrieving the token. (#1237)

Signed-off-by: XhmikosR <xhmikosr@gmail.com>

scripts/pi-hole/js/groups-domains.js

@@ -9,7 +9,7 @@
 
 var table;
 var groups = [];
-var token = $("#token").html();
+var token = $("#token").text();
 var GETDict = {};
 var showtype = "all";