Add pages metadata

[K-Markopoulos]

(Waiting for NextJS migration to me merged first)

Add metadata content to enhance preview links shared on social media and messages - closes #641

• Content is based on Added title & meta description + image for all plages #1050
• Some sites have name: null and we fallback to Site ${id}. Feel free to suggest otherwise.
• Env var NEXT_PUBLIC_WEBSITE_BASE_URL is now required at build time, to generate absolute URLs for images
• We use /sites api on each page generation because of caching on the same request.

Example:

[github-actions]

Build succeeded and deployed at https://aqualink-app-1093.surge.sh
(hash 4bf6687 deployed at 2025-02-13T12:53:18)

[Caesarh97]

Hi @K-Markopoulos,
Good job on this! Just FYI, the main reason for doing this is from a search engine perspective. Since many of our pages don't have much text, it's hard to gain organic and paid searches for our pages. The title and meta description should help the search engine understand what's on our pages and who should visit them. If you have any other thoughts that could help me with my marketing efforts, please let me know.

Everything looks good to me. Can you confirm if the title and meta for the start page (landing) also have been added? UPDATE: I found the correct info, and it all looks good.