Polish & delabs Exploring public spaces feature (#11423)

* Iterate search public spaces UX

* Tweak iconography in spotlight

* Delabs `Exploring public spaces`

* Tweak msc3827 v1.4 support discovery

* i18n

* Delete stale test

* Fix tests

* Iterate

* Iterate PR based on review

* Improve types

* Add shortcut to search for public spaces to create space menu

* Update import

* Add org.matrix.msc3827.stable filtering

* Fix tests

* silence some errors

src/dispatcher/payloads/OpenSpotlightPayload.ts

@@ -0,0 +1,26 @@
+/*
+Copyright 2023 The Matrix.org Foundation C.I.C.
+
+Licensed under the Apache License, Version 2.0 (the "License");
+you may not use this file except in compliance with the License.
+You may obtain a copy of the License at
+
+    http://www.apache.org/licenses/LICENSE-2.0
+
+Unless required by applicable law or agreed to in writing, software
+distributed under the License is distributed on an "AS IS" BASIS,
+WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+See the License for the specific language governing permissions and
+limitations under the License.
+*/
+
+import { Action } from "../actions";
+import { ActionPayload } from "../payloads";
+import { Filter } from "../../components/views/dialogs/spotlight/Filter";
+
+export interface OpenSpotlightPayload extends ActionPayload {
+    action: Action.OpenSpotlight;
+
+    initialFilter?: Filter;
+    initialText?: string;
+}