Add security certificates section on the homepage

[Brenosalv]

528

Changes

• Add security certificates section below case studies section on the homepage.

Tests / Screenshots

Below the case sturdies section:

[Brenosalv]

@danthelion Adding the security certificates section into the homepage conflicts the alternate background colors dark, light, dark, light, light... Is it okay for you? As now the number of sections is odd, there is no way to have alternative background colors as before. So I just set a darker grey background color to the new section.

[github-actions[bot]]

Visit the preview URL for this PR (updated for commit 6cdb34f):

https://estuary-marketing--pr541-brenosalv-feature-52-nrr982ga.web.app

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[danthelion]

@Brenosalv that won't work, let's re-think how we add this again.