Account Activity View + Account Forms (#1406)

* Remove balance mode, sketch out refactor

* Activity view checkpoint

* Entry partials, checkpoint

* Finish txn partial

* Give entries context when editing for different turbo responses

* Calculate change of balance for each entry

* Account tabs consolidation

* Translations, linting, brakeman updates

* Account actions concern

* Finalize forms, get account system tests passing

* Get tests passing

* Lint, rubocop, schema updates

* Improve routing and stream responses

* Fix broken routes

* Add import option for adding accounts

* Fix system test

* Fix test specificity

* Fix sparklines

* Improve account redirects

app/models/depository.rb

@@ -1,7 +1,16 @@
 class Depository < ApplicationRecord
   include Accountable
 
+  SUBTYPES = [
+    [ "Checking", "checking" ],
+    [ "Savings", "savings" ]
+  ].freeze
+
   def color
     "#875BF7"
   end
+
+  def icon
+    "landmark"
+  end
 end