feat(layout): increase max width of wide and narrow variants

[stephanLeece]

Due to a lot of feedback, it seems the maximum width of the page-cut is too small. Therefore we want to increase the maximum width of the content for all variants "wide" and “narrow”

Ticket: https://contentful.atlassian.net/browse/CFISO-1695

Approach:

Max width of component body updated to 1920px and 900px for wide, narrow variants respectively.

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Name	Status	Preview	Updated (UTC)
forma-36	✅ Ready (Inspect)	Visit Preview	Jul 19, 2024 11:32am

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Latest commit: d6a3ec9b830023d1b0ba85a9b05391419be96f94

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``` Some errors occurred when validating the changesets config: The package "@contentful/f36-components" depends on the ignored package "@contentful/f36-avatar", but "@contentful/f36-components" is not being ignored. Please add "@contentful/f36-components" to the `ignore` option. The package "@contentful/f36-components" depends on the ignored package "@contentful/f36-image", but "@contentful/f36-components" is not being ignored. Please add "@contentful/f36-components" to the `ignore` option. The package "@contentful/f36-components" depends on the ignored package "@contentful/f36-header", but "@contentful/f36-components" is not being ignored. Please add "@contentful/f36-components" to the `ignore` option. ```