Add title to remove dialog of 'RADIUS Servers' entity

To improve translation quality the title of Remove dialog
should be specified explicitly in the spec and should be an
entire sentence.

Fixes: https://pagure.io/freeipa/issue/7699
Reviewed-By: Serhii Tsymbaliuk <stsymbal@redhat.com>

install/ui/src/freeipa/radiusproxy.js

@@ -105,7 +105,10 @@ return {
             },
             'ipatokenusermapattribute'
         ]
-    }
+    },
+    deleter_dialog: {
+        title: '@i18n:objects.radiusproxy.remove',
+    },
 };};
 
 /**

ipaserver/plugins/internal.py

@@ -790,6 +790,7 @@ class i18n_messages(Command):
             },
             "radiusproxy": {
                 "details": _("RADIUS Proxy Server Settings"),
+                "remove": _("Remove RADIUS servers"),
             },
             "realmdomains": {
                 "identity": _("Realm Domains"),