Consolidate and simplify account pages (#2462)

* Remove ScrollFocusable

* Consolidate and simplify account pages

* Lint fixes

* Fix tab param initialization

* Remove stale files

* Remove stale route, make accountable routes clearer

app/components/UI/account_page.rb

@@ -0,0 +1,45 @@
+class UI::AccountPage < ApplicationComponent
+  attr_reader :account, :chart_view, :chart_period
+
+  def initialize(account:, chart_view: nil, chart_period: nil, active_tab: nil)
+    @account = account
+    @chart_view = chart_view
+    @chart_period = chart_period
+    @active_tab = active_tab
+  end
+
+  def title
+    account.name
+  end
+
+  def subtitle
+    return nil unless account.property?
+
+    account.property.address
+  end
+
+  def active_tab
+    tabs.find { |tab| tab == @active_tab&.to_sym } || tabs.first
+  end
+
+  def tabs
+    case account.accountable_type
+    when "Investment"
+      [ :activity, :holdings ]
+    when "Property", "Vehicle", "Loan"
+      [ :activity, :overview ]
+    else
+      [ :activity ]
+    end
+  end
+
+  def tab_partial_name(tab)
+    case tab
+    when :activity
+      "accounts/show/activity"
+    when :holdings, :overview
+      # Accountable is responsible for implementing the partial in the correct folder
+      "#{account.accountable_type.downcase.pluralize}/tabs/#{tab}"
+    end
+  end
+end