Flemming/image res

[FlemmingMP]

• Substantially increase image resolution in contacts page.
• Give article cards an image size. This scales them and improves performance.
• Increase article hero image size to the same width as the element.

[github-actions[bot]]

Visit the preview URL for this PR (updated for commit 60c0169):

• https://dev-bjerk-io--pr738-flemming-image-res-w3mypvet.web.app
• https://bjerk-io--pr738-flemming-image-res-prr73uac.web.app

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[github-actions[bot]]

Visit the preview URL for this PR (updated for commit d4baa97):

https://bjerk-io--pr738-flemming-image-res-prr73uac.web.app

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