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/presence/presence.spec.ts

@@ -18,7 +18,7 @@ test.describe("Presence tests", () => {
         // This is failing on CI (https://github.com/element-hq/element-web/issues/27270)
         // but not locally, so debugging this is going to be tricky. Let's disable it for now.
         test.skip("renders unreachable presence state correctly", async ({ page, app, user, bot: bob }) => {
-            await app.client.createRoom({ name: "My Room", invite: [bob.credentials.userId] });
+            await app.client.createRoom({ name: "My Room", invite: [bob.credentials!.userId] });
             await app.viewRoomByName("My Room");
 
             await bob.evaluate(async (client) => {
@@ -36,7 +36,7 @@ test.describe("Presence tests", () => {
                                 events: [
                                     {
                                         type: "m.presence",
-                                        sender: bob.credentials.userId,
+                                        sender: bob.credentials!.userId,
                                         content: {
                                             presence: "io.element.unreachable",
                                             currently_active: false,