WIP Add wallet transactions route, view

Adds a new component for the wallet summary as well, and makes the
component tests work with RSpec.

app/controllers/wallet_controller.rb

@@ -3,10 +3,10 @@ require "rqrcode"
 class WalletController < ApplicationController
   before_action :require_user_signed_in
   before_action :authenticate_with_lndhub
+  before_action :set_current_section
+  before_action :fetch_balance
 
   def index
-    @current_section = :wallet
-
     @wallet_url = "lndhub://#{current_user.ln_login}:#{current_user.ln_password}@#{ENV['LNDHUB_PUBLIC_URL']}"
 
     qrcode = RQRCode::QRCode.new(@wallet_url)
@@ -20,8 +20,10 @@ class WalletController < ApplicationController
         class: 'inline-block'
       }
     )
+  end
+
+  def transactions
 
-    @balance = fetch_balance rescue nil
   end
 
   private
@@ -42,6 +44,10 @@ class WalletController < ApplicationController
   def fetch_balance
     lndhub = Lndhub.new
     data = lndhub.balance @ln_auth_token
-    data["BTC"]["AvailableBalance"]
+    @balance = data["BTC"]["AvailableBalance"] rescue nil
+  end
+
+  def set_current_section
+    @current_section = :wallet
   end
 end