Start and end balance breakdown in activity view (#2466)

* Initial data objects

* Remove trend calculator

* Fill in balance reconciliation for entry group

* Initial tooltip component

* Balance trends in activity view

* Lint fixes

* trade partial alignment fix

* Tweaks to balance calculation to acknowledge holdings value better

* More lint fixes

* Bump brakeman dep

* Test fixes

* Remove unused class

app/components/UI/account/activity_feed.rb

@@ -0,0 +1,35 @@
+class UI::Account::ActivityFeed < ApplicationComponent
+  attr_reader :feed_data, :pagy, :search
+
+  def initialize(feed_data:, pagy:, search: nil)
+    @feed_data = feed_data
+    @pagy = pagy
+    @search = search
+  end
+
+  def id
+    dom_id(account, :activity_feed)
+  end
+
+  def broadcast_channel
+    account
+  end
+
+  def broadcast_refresh!
+    Turbo::StreamsChannel.broadcast_replace_to(
+      broadcast_channel,
+      target: id,
+      renderable: self,
+      layout: false
+    )
+  end
+
+  def activity_dates
+    feed_data.entries_by_date
+  end
+
+  private
+    def account
+      feed_data.account
+    end
+end