Auto merge of #14556 - iamrohit7:fix-set-device, r=SimonSapin,Emilio

Make Stylist::set_device check stylesheet media queries

Fixes Stylist::set_device to check for media queries in stylesheets.

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- [X] `./mach build -d` does not report any errors
- [X] `./mach test-tidy` does not report any errors
- [X] These changes fix #14279  (github issue number if applicable).

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- [X] There are tests for these changes

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tests/wpt/mozilla/meta/MANIFEST.json

@@ -6812,6 +6812,12 @@
             "url": "/_mozilla/css/offset_properties_inline.html"
           }
         ],
+        "css/stylesheet_media_queries.html": [
+          {
+            "path": "css/stylesheet_media_queries.html",
+            "url": "/_mozilla/css/stylesheet_media_queries.html"
+          }
+        ],
         "css/test_font_family_parsing.html": [
           {
             "path": "css/test_font_family_parsing.html",