Add title to 'add' dialog for 'Certificates' entity

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

Fixes: https://pagure.io/freeipa/issue/7707
Reviewed-By: Serhii Tsymbaliuk <stsymbal@redhat.com>

install/ui/src/freeipa/plugins/ca.js

@@ -51,6 +51,7 @@ function(IPA, $, phases, reg, cert) {
              }
          ],
          adder_dialog: {
+             title: '@i18n:objects.ca.add',
              fields: [
                  {
                      $type: 'text',

install/ui/src/freeipa/plugins/caacl.js

@@ -84,6 +84,7 @@ var spec = {
         }
     ],
     adder_dialog: {
+        title: '@i18n:objects.caacl.add',
         fields: [
             'cn',
             {

ipaserver/plugins/internal.py

@@ -504,9 +504,11 @@ class i18n_messages(Command):
                 "remove": _("Remove automount maps"),
             },
             "ca": {
+                "add": _("Add certificate authority"),
                 "remove": _("Remove certificate authorities"),
             },
             "caacl": {
+                "add": _("Add CA ACL"),
                 "all": _("All"),
                 "any_ca": _("Any CA"),
                 "any_host": _("Any Host"),