Auto merge of #21050 - jonathanKingston:fix-replacability-of-window-attrs, r=jdm

Allow supported window attributes to be replacable.

As seen in https://github.com/servo/servo/pull/21045 some Window attributes don't support JavaScript from being able to shadow and replace their values.

This PR adds all other attributes I could find that are supported by servo to be replaceable.

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