Use IDestroyable instead of IDisposable

For consistency within our project

src/components/views/rooms/NotificationBadge.tsx

@@ -31,6 +31,7 @@ import { MatrixEvent } from "matrix-js-sdk/src/models/event";
 import ActiveRoomObserver from "../../../ActiveRoomObserver";
 import { EventEmitter } from "events";
 import { arrayDiff } from "../../../utils/arrays";
+import { IDestroyable } from "../../../utils/IDestroyable";
 
 export const NOTIFICATION_STATE_UPDATE = "update";
 
@@ -106,7 +107,7 @@ export default class NotificationBadge extends React.PureComponent<IProps, IStat
     }
 }
 
-export class RoomNotificationState extends EventEmitter {
+export class RoomNotificationState extends EventEmitter implements IDestroyable {
     private _symbol: string;
     private _count: number;
     private _color: NotificationColor;

src/stores/room-list/filters/CommunityFilterCondition.ts

@@ -20,13 +20,13 @@ import { Group } from "matrix-js-sdk/src/models/group";
 import { EventEmitter } from "events";
 import GroupStore from "../../GroupStore";
 import { arrayHasDiff } from "../../../utils/arrays";
-import { IDisposable } from "../../../utils/IDisposable";
+import { IDestroyable } from "../../../utils/IDestroyable";
 
 /**
  * A filter condition for the room list which reveals rooms which
  * are a member of a given community.
  */
-export class CommunityFilterCondition extends EventEmitter implements IFilterCondition, IDisposable {
+export class CommunityFilterCondition extends EventEmitter implements IFilterCondition, IDestroyable {
     private roomIds: string[] = [];
 
     constructor(private community: Group) {
@@ -57,7 +57,7 @@ export class CommunityFilterCondition extends EventEmitter implements IFilterCon
         }
     };
 
-    public dispose(): void {
+    public destroy(): void {
         GroupStore.off("update", this.onStoreUpdate);
     }
 }

src/utils/IDestroyable.ts

@@ -14,6 +14,6 @@ See the License for the specific language governing permissions and
 limitations under the License.
 */
 
-export interface IDisposable {
+export interface IDestroyable {
-    dispose(): void;
+    destroy(): void;
 }