chore: format docs (#8629)

docs/api/puppeteer.page.viewport.md

@@ -1,26 +1,29 @@
----
-sidebar_label: Page.viewport
----
-# Page.viewport() method
-
-**Signature:**
-
-```typescript
-class Page {viewport(): Viewport | null;}
-```
-**Returns:**
-
-[Viewport](./puppeteer.viewport.md) \| null
-
-- `width`: page's width in pixels
-
-- `height`: page's height in pixels
-
-- `deviceScalarFactor`: Specify device scale factor (can be though of as dpr). Defaults to `1`.
-
-- `isMobile`: Whether the meta viewport tag is taken into account. Defaults to `false`.
-
-- `hasTouch`: Specifies if viewport supports touch events. Defaults to `false`.
-
-- `isLandScape`: Specifies if viewport is in landscape mode. Defaults to `false`.
-
+---
+sidebar_label: Page.viewport
+---
+
+# Page.viewport() method
+
+**Signature:**
+
+```typescript
+class Page {
+  viewport(): Viewport | null;
+}
+```
+
+**Returns:**
+
+[Viewport](./puppeteer.viewport.md) \| null
+
+- `width`: page's width in pixels
+
+- `height`: page's height in pixels
+
+- `deviceScalarFactor`: Specify device scale factor (can be though of as dpr). Defaults to `1`.
+
+- `isMobile`: Whether the meta viewport tag is taken into account. Defaults to `false`.
+
+- `hasTouch`: Specifies if viewport supports touch events. Defaults to `false`.
+
+- `isLandScape`: Specifies if viewport is in landscape mode. Defaults to `false`.