Add title to 'Remove' dialog for 'association_table' widget of 'Topology' entity

To improve translation quality the title of 'Remove' dialog,
which is initialized within details table of the entity, should be
specified explicitly in the spec and should be an entire sentence.

Fixes: https://pagure.io/freeipa/issue/7704
Reviewed-By: Serhii Tsymbaliuk <stsymbal@redhat.com>

install/ui/src/freeipa/topology.js

@@ -448,7 +448,8 @@ return {
                                 {
                                     name: 'service_relative_weight'
                                 }
-                            ]
+                            ],
+                            remove_title: '@i18n:objects.topologylocation.remove_servers',
                         }
                     ]
                 }

ipaserver/plugins/internal.py

@@ -1167,6 +1167,9 @@ class i18n_messages(Command):
             },
             "topologylocation": {
                 "remove": _("Remove IPA locations"),
+                "remove_servers": _(
+                    "Remove IPA servers from IPA location '${primary_key}'"
+                ),
             },
             "topologysegment": {
                 "remove": _("Remove topology segments"),