LLS: Remove beacon info illegal replace relation (#8390)

* dont apply illegal replace relation to beacon_info event

Signed-off-by: Kerry Archibald <kerrya@element.io>

* only display tiles for beacon infos with live prop

Signed-off-by: Kerry Archibald <kerrya@element.io>

* copyrights

Signed-off-by: Kerry Archibald <kerrya@element.io>

src/utils/beacon/timeline.ts

@@ -0,0 +1,27 @@
+/*
+Copyright 2020 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 { MatrixEvent } from "matrix-js-sdk/src/matrix";
+import { M_BEACON_INFO } from "matrix-js-sdk/src/@types/beacon";
+
+/**
+ * beacon_info events without live property set to true
+ * should be displayed in the timeline
+ */
+export const shouldDisplayAsBeaconTile = (event: MatrixEvent): boolean => (
+    M_BEACON_INFO.matches(event.getType()) &&
+    !!event.getContent()?.live
+);