Add Export Functionality

[flowirtz]

• Add button component
• Implement CRE page
• Implement standards page
• Implement generic search page

Fixes #161

https://www.loom.com/share/67d67449e98649dc9fffe0f180d5dee8

[northdpole]

the pattern so far has been to make actions into query strings, e.g. ?export=true
this is to prevent accidentally exporting things when you call
node/US_CRYPTO_EXPORT/foo

i'll fix this in the next few days
other than that it's good work, thank you

[northdpole]

TODO: @northdpole , add documentation on how to setup a gspread oauth token so that the backend can generate the spreadsheet.

[northdpole]

This can easily be abused by bots, can you please

• make this feature optional (hide it behind an environment variable when building the frontend ?
• add a captcha challenge for clicking the button