ENG: Replace large images on the site | Product Marketing Group pages

Replaces image assets that are too large or not cropped correctly for the component.

Production	Review App
https://about.gitlab.com/features/	https://934-eng-replace-large-images-on-the-site-product-marketing-grou.about.gitlab-review.app/features/

current image	updated image
https://about.gitlab.com/nuxt-images/company/next-step.png	https://934-eng-replace-large-images-on-the-site-product-marketing-grou.about.gitlab-review.app/nuxt-images/company/next-step.png
https://about.gitlab.com/nuxt-images/devops-graphics/plan.png	https://934-eng-replace-large-images-on-the-site-product-marketing-grou.about.gitlab-review.app/nuxt-images/devops-graphics/plan.png
https://about.gitlab.com/nuxt-images/features/resources/resources_partners.png	https://934-eng-replace-large-images-on-the-site-product-marketing-grou.about.gitlab-review.app/nuxt-images/features/resources/resources_partners.png

• I, the Assignee, have run Axe Devtools on any updated pages, and fixed the relevant accessibility issues.
• These changes meet a specific OKR or item in our Quarterly Plan.
• These changes work on both Safari and Chrome.
• These changes have been reviewed for Visual Quality Assurance and Functional Quality Assurance on Mobile, Desktop, and Tablet.
• These changes work with our Google Analytics and SEO tools.
• These changes have been documented as expected.
• Images are appropriately sized

Closes #934 (closed)