Support multiple Limited Access Keys on BOS gateway to enable "Don't ask me again" when interacting with thirdparty contracts on BOS

[frol]

Is your feature request related to a problem? Please describe.

Here is the video recording: https://www.loom.com/share/61e95ce27c004e93a4f4ef8dd15422c9

As a user of DevHub, I don't want to be bothered with signing every single interaction (like or post on DevHub). Since DevHub uses their own contract, near.org gateway cannot sign the function call with the limited access key it has for social.near, so it falls back to signing it with a full access key and redirects to the wallet.

Describe the solution you'd like

As a user, I should be prompted with "Don't ask me again" prompt on the first interaction just like the regular experience of BOS likes and posts on social.near, and that would add a new limited access key that would be able to sign the function calls to the DevHub contract.

This will also be needed for FastAuth-created accounts (near/fast-auth-signer#97), but there is also a limitation of 4 access keys per zero-balance account, so access keys needs to be rotated somehow, I guess, but it is a different story...

[frol]

I also reported in on the BOS VM repo: NearSocial/VM#148

[frol]

This has been implemented by a DevHub contributor and is now resolved with NearSocial/VM#156. Please, don't skip the next release.