Make apps/web/playwright comply with strict mode (#34403)

* Make apps/web/playwright comply with strict mode

Otherwise it sometimes fails to compile matrix-js-sdk as strict mode & noImplicitAny both impact how overloads are asserted

* Iterate

apps/web/playwright/e2e/widgets/events.spec.ts

@@ -75,7 +75,7 @@ test.describe("Widget Events", () => {
     }) => {
         const roomId = await app.client.createRoom({
             name: ROOM_NAME,
-            invite: [bot.credentials.userId],
+            invite: [bot.credentials!.userId],
         });
 
         // setup widget via state event

apps/web/playwright/e2e/widgets/jitsi.spec.ts

@@ -30,7 +30,7 @@ test.describe("Jitsi Calls", () => {
     test("should be able to pop out a jitsi widget", async ({ page, app, bot, bot2, context }) => {
         const roomId = await app.client.createRoom({
             name: ROOM_NAME,
-            invite: [bot.credentials.userId, bot2.credentials.userId],
+            invite: [bot.credentials!.userId, bot2.credentials!.userId],
         });
 
         await bot.joinRoom(roomId);

apps/web/playwright/e2e/widgets/layout.spec.ts

@@ -76,19 +76,19 @@ test.describe("Widget Layout", () => {
 
     test("manually resize the height of the top container layout", async ({ page }) => {
         const iframe = page.locator('iframe[title="widget"]');
-        expect((await iframe.boundingBox()).height).toBeLessThan(250);
+        expect((await iframe.boundingBox())!.height).toBeLessThan(250);
 
         await page.locator(".mx_AppsDrawer_resizer_container_handle").hover();
         await page.mouse.down();
         await page.mouse.move(0, 550);
         await page.mouse.up();
 
-        expect((await iframe.boundingBox()).height).toBeGreaterThan(400);
+        expect((await iframe.boundingBox())!.height).toBeGreaterThan(400);
     });
 
     test("programmatically resize the height of the top container layout", async ({ page, app }) => {
         const iframe = page.locator('iframe[title="widget"]');
-        expect((await iframe.boundingBox()).height).toBeLessThan(250);
+        expect((await iframe.boundingBox())!.height).toBeLessThan(250);
 
         await app.client.sendStateEvent(
             roomId,
@@ -106,6 +106,6 @@ test.describe("Widget Layout", () => {
             "",
         );
 
-        await expect.poll(async () => (await iframe.boundingBox()).height).toBeGreaterThan(400);
+        await expect.poll(async () => (await iframe.boundingBox())!.height).toBeGreaterThan(400);
     });
 });

apps/web/playwright/e2e/widgets/widget-pip-close.spec.ts

@@ -56,7 +56,7 @@ async function waitForRoomWidget(client: Client, widgetId: string, roomId: strin
                     }
                 }
 
-                const room = matrixClient.getRoom(roomId);
+                const room = matrixClient.getRoom(roomId)!;
 
                 const startingWidgetEvents = room.currentState.getStateEvents("im.vector.modular.widgets");
                 if (eventsInIntendedState(startingWidgetEvents)) {
@@ -97,14 +97,14 @@ test.describe("Widget PIP", () => {
         test(`should be closed on ${userRemove}`, async ({ page, app, bot, user }) => {
             const roomId = await app.client.createRoom({
                 name: ROOM_NAME,
-                invite: [bot.credentials.userId],
+                invite: [bot.credentials!.userId],
             });
 
             // sets bot to Admin and user to Moderator
             await app.client.sendStateEvent(roomId, "m.room.power_levels", {
                 users: {
                     [user.userId]: 50,
-                    [bot.credentials.userId]: 100,
+                    [bot.credentials!.userId]: 100,
                 },
             });