Fix profile page on fresh install (#684)

app/models/user.rb

@@ -7,12 +7,22 @@ class User < ApplicationRecord
   validates :email, presence: true, uniqueness: true
   normalizes :email, with: ->(email) { email.strip.downcase }
 
+  normalizes :first_name, :last_name, with: ->(value) { value.strip.presence }
+
   enum :role, { member: "member", admin: "admin" }, validate: true
 
   generates_token_for :password_reset, expires_in: 15.minutes do
     password_salt&.last(10)
   end
 
+  def display_name
+    [ first_name, last_name ].compact.join(" ").presence || email
+  end
+
+  def initial
+    (display_name&.first || email.first).upcase
+  end
+
   def acknowledge_upgrade_prompt(commit_sha)
     update!(last_prompted_upgrade_commit_sha: commit_sha)
   end