Stabilise screenshot tests (#12835)

* Hide tooltips in screenshot tests by default

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

* Blank out dialog backgrounds by default

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

* Crop image-upload-preview screenshot

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

* Update screenshots

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

* Stabilise width of masked user is in user profile

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

* Tidy

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

* Update screenshots

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

---------

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

playwright/e2e/user-view/user-view.spec.ts

@@ -30,6 +30,12 @@ test.describe("UserView", () => {
         await expect(rightPanel.getByText("1 session")).toBeVisible();
         await expect(rightPanel).toMatchScreenshot("user-info.png", {
             mask: [page.locator(".mx_UserInfo_profile_mxid")],
+            css: `
+                /* Use monospace font for consistent mask width */
+                .mx_UserInfo_profile_mxid {
+                    font-family: Inconsolata !important;
+                }
+            `,
         });
     });
 });