* Fix the default mobile_guide links.
Whilst the script should update these if it fails these should link to Element X which is now the default app that we link out to from this page.
* Rename the mobile_guide_app_variant values to be clearer.
Also handle invalid config values by defaulting to Element X.
* Rename snapshots to match new app variant identifiers.
* Reapply "Update the mobile_guide page to the new design. (#30006)" (#30104)
This reverts commit c51823db5e.
* Use Element X as the default mobile_guide_app_variant when omitted.
* Fix a build error on Windows.
Additionally revert "Remove unnecessary <%= require %> usages" and let webpack handle all of the assets (without a manual copy rule).
* Exclude mobile_guide from coverage gate
It has playwright tests
* Revert the re-introduction of <%= require %>
* Fix snapshot tests on mobile_guide.
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Co-authored-by: Michael Telatynski <7t3chguy@gmail.com>
