message: fix: Use #me for WebID generation
diff: "postHandler": {
  "@type": "RegistrationHandler",
  "args_baseUrl": { "@id": "urn:solid-server:default:variable:baseUrl" },
  - "args_webIdSuffix": "/profile/card",
  + "args_webIdSuffix": "/profile/card#me",
  "args_identifierGenerator": { "@id": "urn:solid-server:default:IdentifierGenerator" },
  "args_ownershipValidator": { "@id": "urn:solid-server:auth:password:OwnershipValidator" },
  "args_accountStore": { "@id": "urn:solid-server:auth:password:AccountStore" },
  