feat: add HTML page for share links

[wa0x6e]

Fix #8

Add HTML Page with all the required meta tags, used for sharing snapshot.org space and proposal page

TODO

• Add some UI and links for manual redirection
• Fill missing data, use default text TBD
• Extract the endpoint into a dedicated express app, only for share link ? (avoid mixing api and share url)

[wa0x6e]

@bonustrack @samuveth @ChaituVR

For the descriptionm, what text should we display for:

• space, when the about field is empty ? show proposal stats like x active proposals | Y closed proposals | M pending proposals ?
• proposal: we remove-markdown and show the first X words ?

How should we show the proposal state ? Inside the title like [CLOSED] title ? or do we insert it in the description like [Closed] [X votes] description ?

I guess we're using the exact same url pattern, and just change the domain, e.g. http://link.snapshot.org/aave.eth/proposal/0x000 ?

[wa0x6e]

proposal description will be:

body without markdown, truncated to 300 chars, with prefix [State] x votes -

[wa0x6e]

space description will be:

space.about, or if empty, show x members

[ChaituVR]

space, when the about field is empty ? show proposal stats like x active proposals | Y closed proposals | M pending proposals ?

These fields are not available yet on snapshot graphql API 🙈

[wa0x6e]

space, when the about field is empty ? show proposal stats like x active proposals | Y closed proposals | M pending proposals ?

These fields are not available yet on snapshot graphql API 🙈

Yes, that's why I fallbacked to only x members

[ChaituVR]

space description will be:
space.about, or if empty, show x members

Would be nice if we can show x members even if we have about wyt?

[wa0x6e]

done