feat: Add ability to enable and disable data collection for cars (#3993)

* Add ability to enable and disable cars

* Add default value for enabled in car_settings.

* Fix unit tests.

* Fix formatting.

* Update text to be more descriptive

* Update lables.

priv/repo/migrations/20240603152807_add_enabled_to_car_settings.exs

@@ -0,0 +1,9 @@
+defmodule TeslaMate.Repo.Migrations.AddEnabledToCarSettings do
+  use Ecto.Migration
+
+  def change do
+    alter table(:car_settings) do
+      add :enabled, :boolean, null: false, default: true
+    end
+  end
+end