SocialInformation should extend from PostgreSQLModel

[0xLeif]

struct SocialInformation: Content {
    var id: Int?
    var username: String = ""
    var firstName: String = ""
    var lastName: String = ""
    var email: String = ""
    var discordUsername: String = ""
    var githubUsername: String = ""
    var tags: [String] = []
    var profileImage: String = ""
    var biography: String = ""
    var links: [String] = []
    var location: String = ""
}

SocialInformation should have its own PostgreSQL table by extending from Migration.