Move reload/restart/shutdown into an Acties menu in the top bar

The actions are now on every page in the same place instead of a button
row that differed per page.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

src/voxip_kiosk/web/templates/_macros.html

@@ -2,10 +2,10 @@
 <span class="badge badge-{{ status }}" {% if field %}data-badge="{{ field }}"{% endif %}><span class="dot" aria-hidden="true"></span><span data-badge-label>{{ label }}</span></span>
 {%- endmacro %}
 
-{% macro action(url, label, cls="btn-primary", confirm=None, confirm_title=None, big=False) -%}
-<form method="post" action="{{ url }}" class="inline-form" {% if confirm %}data-confirm="{{ confirm }}" data-confirm-title="{{ confirm_title or label }}"{% endif %}>
+{% macro menu_action(url, label, confirm=None, confirm_title=None, danger=False) -%}
+<form method="post" action="{{ url }}" {% if confirm %}data-confirm="{{ confirm }}" data-confirm-title="{{ confirm_title or label }}"{% endif %}>
   <input type="hidden" name="csrf_token" value="{{ csrf_token() }}">
-  <button type="submit" class="btn {{ cls }}{% if big %} btn-big{% endif %}">{{ label }}</button>
+  <button type="submit"{% if danger %} class="danger"{% endif %}>{{ label }}</button>
 </form>
 {%- endmacro %}