Update Typescript to 4.5 (#7344)

src/@types/global.d.ts

@@ -66,6 +66,16 @@ declare global {
         // Needed for Safari, unknown to TypeScript
         webkitAudioContext: typeof AudioContext;
 
+        // https://docs.microsoft.com/en-us/previous-versions/hh772328(v=vs.85)
+        // we only ever check for its existence, so we can ignore its actual type
+        MSStream?: unknown;
+
+        // https://github.com/microsoft/TypeScript-DOM-lib-generator/issues/1029#issuecomment-869224737
+        // https://developer.mozilla.org/en-US/docs/Web/API/OffscreenCanvas
+        OffscreenCanvas?: {
+            new(width: number, height: number): OffscreenCanvas;
+        };
+
         mxContentMessages: ContentMessages;
         mxToastStore: ToastStore;
         mxDeviceListener: DeviceListener;
@@ -123,11 +133,6 @@ declare global {
     }
 
     interface Document {
-        // https://developer.mozilla.org/en-US/docs/Web/API/Document/hasStorageAccess
-        hasStorageAccess?: () => Promise<boolean>;
-        // https://developer.mozilla.org/en-US/docs/Web/API/Document/requestStorageAccess
-        requestStorageAccess?: () => Promise<undefined>;
-
         // Safari & IE11 only have this prefixed: we used prefixed versions
         // previously so let's continue to support them for now
         webkitExitFullscreen(): Promise<void>;
@@ -138,27 +143,26 @@ declare global {
 
     interface Navigator {
         userLanguage?: string;
-        // https://github.com/Microsoft/TypeScript/issues/19473
-        // https://developer.mozilla.org/en-US/docs/Web/API/MediaSession
-        mediaSession: any;
     }
 
     interface StorageEstimate {
         usageDetails?: { [key: string]: number };
     }
 
-    interface HTMLAudioElement {
-        type?: string;
-        // sinkId & setSinkId are experimental and typescript doesn't know about them
-        sinkId: string;
-        setSinkId(outputId: string);
+    // https://developer.mozilla.org/en-US/docs/Web/API/OffscreenCanvas
+    interface OffscreenCanvas {
+        height: number;
+        width: number;
+        getContext: HTMLCanvasElement["getContext"];
+        convertToBlob(opts?: {
+            type?: string;
+            quality?: number;
+        }): Promise<Blob>;
+        transferToImageBitmap(): ImageBitmap;
     }
 
-    interface HTMLVideoElement {
+    interface HTMLAudioElement {
         type?: string;
-        // sinkId & setSinkId are experimental and typescript doesn't know about them
-        sinkId: string;
-        setSinkId(outputId: string);
     }
 
     interface HTMLStyleElement {
@@ -210,6 +214,11 @@ declare global {
         new (options?: AudioWorkletNodeOptions): AudioWorkletProcessor;
     };
 
+    // https://github.com/microsoft/TypeScript-DOM-lib-generator/issues/1029#issuecomment-881509595
+    interface AudioParamDescriptor {
+        readonly port: MessagePort;
+    }
+
     // https://github.com/microsoft/TypeScript/issues/28308#issuecomment-650802278
     function registerProcessor(
         name: string,