Add main navigation bar

Make donations and invitations accessible to everyone

app/controllers/dashboard_controller.rb

@@ -2,5 +2,6 @@ class DashboardController < ApplicationController
   before_action :require_user_signed_in
 
   def index
+    @current_section = "dashboard"
   end
 end

app/controllers/donations_controller.rb

@@ -5,5 +5,6 @@ class DonationsController < ApplicationController
   # GET /donations.json
   def index
     @donations = current_user.donations.completed
+    @current_section = "contributions"
   end
 end

app/controllers/invitations_controller.rb

@@ -8,6 +8,7 @@ class InvitationsController < ApplicationController
   def index
     @invitations_unused = current_user.invitations.unused
     @invitations_used   = current_user.invitations.used
+    @current_section = "invitations"
   end
 
   # GET /invitations/a-random-invitation-token