fix(web): migrate controller macro to Phoenix 1.8 formats option

Replace the deprecated :namespace option with explicit :formats and an
html layout plug to keep riveView/CarView resolution and the app layout behavior.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

Author: JakobLichterfeld

CHANGELOG.md

@@ -96,6 +96,7 @@
 - build(deps): bump js-yaml from 4.2.0 to 4.3.1 in /website (#5597)
 - build(deps): bump brace-expansion from 1.1.14 to 1.1.18 in /website (#5596)
 - build(deps): bump fast-uri from 3.1.4 to 3.1.5 in /website (#5589)
+- build(deps): bump phoenix from 1.7.24 to 1.8.9 (#5572 - @JakobLichterfeld)
 
 #### Dashboards
 

lib/teslamate_web.ex

@@ -24,7 +24,10 @@ defmodule TeslaMateWeb do
 
   def controller do
     quote do
-      use Phoenix.Controller, namespace: TeslaMateWeb
+      use Phoenix.Controller,
+        formats: [html: "View", json: "View", xml: "View"]
+
+      plug :put_layout, html: {TeslaMateWeb.LayoutView, :app}
 
       import Plug.Conn
       use Gettext, backend: TeslaMateWeb.Gettext