Account namespace updates: part 5 (valuations) (#901)

* Move Valuation to Account namespace

* Move account history to controller

* Clean up valuation controller and views

* Translations and cleanup

* Remove unused scopes and methods

* Pass brakeman

config/routes.rb

@@ -80,8 +80,10 @@ Rails.application.routes.draw do
       post :sync
     end
 
-    resource :logo, only: :show, module: :account
-    resources :valuations, shallow: true
+    scope module: :account do
+      resource :logo, only: :show
+      resources :valuations
+    end
   end
 
   resources :institutions, except: %i[ index show ]