Fix flakiness in playwright tests (#12512)

* Remove redundant option

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Stabilise app download dialog screenshot test

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Try to stabilise user menu opening in playwright tests

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Stabilise one-to-one-chat.spec.ts

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Stabilise kick.spec.ts

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Iterate

Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

* Discard changes to playwright/element-web-test.ts

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Signed-off-by: Michael Telatynski <7t3chguy@gmail.com>

playwright/e2e/one-to-one-chat/one-to-one-chat.spec.ts

@@ -45,6 +45,7 @@ test.describe("1:1 chat room", () => {
         await expect(
             page.getByRole("group", { name: "Rooms" }).locator(".mx_RoomTile").getByText(user2.displayName),
         ).not.toBeVisible();
+        await page.waitForTimeout(500); // avoid race condition with routing
 
         // open new 1:1 chat room
         await page.goto(`/#/user/${user2.userId}?action=chat`);