Fix Look & Feel for the Testcontainers for C/C++ website #61
Description
Currently, we moved the site to https://testcontainers.github.io/testcontainers-native/ , but its look & feel is different from other Testcontainers site
Quick wins
- Fix logos in the dark mode
Bigger stories
- Apply branding of Testcontainers, similar to other project sites. The styling from https://node.testcontainers.org/ can be used
- Update headers and footers to follow the style
Everything can be done via incremental PRs