Fix tab param initialization

app/components/UI/account_page.rb

@@ -19,7 +19,7 @@ class UI::AccountPage < ApplicationComponent
   end
 
   def active_tab
-    tabs.find { |tab| tab == @active_tab } || tabs.first
+    tabs.find { |tab| tab == @active_tab&.to_sym } || tabs.first
   end
 
   def tabs

app/controllers/accounts_controller.rb

@@ -11,6 +11,7 @@ class AccountsController < ApplicationController
 
   def show
     @chart_view = params[:chart_view] || "balance"
+    @tab = params[:tab]
     @q = params.fetch(:q, {}).permit(:search)
     entries = @account.entries.search(@q).reverse_chronological
 

app/views/accounts/show.html.erb

@@ -2,5 +2,5 @@
       account: @account,
       chart_view: @chart_view,
       chart_period: @period,
-      active_tab: @active_tab
+      active_tab: @tab
     ) %>