settings: relabel dry-run, harder PM block, rework users page

- Bewerbungen chip "Trockenmodus" → "nicht abgeschickt" (list + detail view)
- Profile form: add an off-screen honeypot (username + password) so Chrome's
  autofill burns its fill on those instead of the real E-Mail field; switch
  the visible E-Mail and Immomio-Email to type=text + inputmode=email so the
  browser heuristic no longer tags them as login emails
- Users page: create-form sits on top in its own card (3-column grid with
  Administrator checkbox inline); full-width list below with Administrator
  chip, aktiv/deaktiviert chip, "du" marker for the current user, plus
  disable/activate and a new red "löschen" button (confirm prompt) wired to
  new POST /actions/users/delete which cascades through the user's data

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

web/templates/bewerbung_detail.html

@@ -11,7 +11,7 @@
         <span class="chip chip-info">{% if application.triggered_by == 'auto' %}automatisch{% else %}manuell{% endif %}</span>
         {% if application.provider %}<span class="chip chip-info">{{ application.provider }}</span>{% endif %}
         {% if application.submit_forms_used %}<span class="chip chip-warn">echt gesendet</span>
-        {% else %}<span class="chip chip-info">Trockenmodus</span>{% endif %}
+        {% else %}<span class="chip chip-info">nicht abgeschickt</span>{% endif %}
 
         {% if application.success == 0 %}
         <a class="btn btn-danger text-sm ml-auto"