Improve account internal linking and redirect behavior (#864)

* Fix transaction row link and overflow

* Allow user to access imports from account page

* Clean up accounts controller, add link to account page from settings

* Add link to accounts management from accounts summary page

* Cleanup styles

app/controllers/imports_controller.rb

@@ -9,7 +9,8 @@ class ImportsController < ApplicationController
   end
 
   def new
-    @import = Import.new
+    account = Current.family.accounts.find_by(id: params[:account_id])
+    @import = Import.new account: account
   end
 
   def edit