Convert bunch of utils to TS

src/utils/PinningUtils.js

@@ -1,30 +0,0 @@
-/*
-Copyright 2017 Travis Ralston
-
-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.
-*/
-
-export default class PinningUtils {
-    /**
-     * Determines if the given event may be pinned.
-     * @param {MatrixEvent} event The event to check.
-     * @return {boolean} True if the event may be pinned, false otherwise.
-     */
-    static isPinnable(event) {
-        if (!event) return false;
-        if (event.getType() !== "m.room.message") return false;
-        if (event.isRedacted()) return false;
-
-        return true;
-    }
-}