fix: stops using autoResolve for Account.username request

[iPaulPro]

This change removes the autoResolve flag in the Account.username schema. The docs describe this field as

This will get the last linked username if it exists note that it may not marry up to the app where a post was created if used in that context

Since Hey uses global usernames this flag should not be used. Because of the flag, users that have created a Lemonade username no longer show the global @lens/ username. This is unexpected and undesirable behavior that affects search, mention autocomplete, and profile URLs. Eg:

Before:

After:

https://hey.xyz/account/0x8fEC77Ca7aB27289885D8D01D64dA3CfDC47fD8C

[bigint]

Have you tested whether mentions are working?

[iPaulPro]

Have you tested whether mentions are working?

Yes, I have tested and can confirm that they're working as expected.