gnoweb: new u/<handle> page

[moul]

Overview

Create a u/<handle> page on Gnoweb for std.Address.

Definition of Done

1. Render Home Page:

   • Render r/<handle>/home.Render if it exists.

2. Account Information:

   • Display user balance, account number, and sequence number.

3. Update Breadcrumb:

   • The breadcrumb should automatically link to u/<handle>.

Bonus / Future Enhancements

1. Published Packages:

   • List {p,r}/<handle>/** published packages.
   • Implement a new RPC call with pagination to fetch this information.
   • Ideally sorted by publication date.

2. Redirection for registered users:

   • Support u/<username>.
   • Redirect u/<std.Address> to vanity username (r/demo/users) or display the vanity username if it exists.
   • Requires a new RPC call.

3. Team Membership:

   • Display team members for users declared as teams.
   • Display member teams for users.
   • Depends on PR feat: add r/sys/teams #2184.
   • Requires a new RPC call.

4. Additional Features:

   • Avatar with Gravatar or something else that we can whitelist as a hostname, with moderation and image resizing.
   • Integration with r/profile (WIP feat: initial r/profile dapp #181) to allow more standard fields such as homepage, blog posts, etc.
   • Integration with other packages such as blog, gov, etc.
   • Integration with WorxDAO to display contribution metrics (META - WorxDAO (Contributors DAO) #872).
   • Link with GitHub (feat: Oracle packages and Github verification realm #1568).

Related: #2727