chore(AIO-interface): Update office suite naming

Collabora card and container now show 'Collabora Online'
('by Collabora Productivity'), and the Euro-Office container shows
'Nextcloud Office'. The Euro-Office card subtitle is dropped.
ONLYOFFICE strings are untouched.

Assisted-by: OhMyPi:qwen3.8-27b
Signed-off-by: Christoph Schaefer <christoph.schaefer@nextcloud.com>

php/containers.json

@@ -374,7 +374,7 @@
       "container_name": "nextcloud-aio-collabora",
       "image_tag": "%AIO_CHANNEL%",
       "documentation": "https://github.com/nextcloud/all-in-one/discussions/1358",
-      "display_name": "Nextcloud Office",
+      "display_name": "Collabora Online",
       "image": "ghcr.io/nextcloud-releases/aio-collabora",
       "init": true,
       "healthcheck": {
@@ -763,7 +763,7 @@
     {
       "container_name": "nextcloud-aio-eurooffice",
       "image_tag": "%AIO_CHANNEL%",
-      "display_name": "EuroOffice",
+      "display_name": "Nextcloud Office",
       "image": "ghcr.io/nextcloud-releases/aio-eurooffice",
       "init": true,
       "healthcheck": {

php/templates/includes/optional-containers.twig

@@ -28,7 +28,6 @@
             <div class="office-card-header">
                 <div>
                     <h4>Nextcloud Office</h4>
-                    <p class="office-powered-by">powered by Euro-Office</p>
                 </div>
                 <svg class="office-checkmark" width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
                     <circle cx="12" cy="12" r="10" fill="var(--color-nextcloud-blue)"/>
@@ -62,8 +61,8 @@
         <label class="office-card{{ isAnyRunning ? ' office-card-disabled' : '' }}" for="office-collabora">
             <div class="office-card-header">
                 <div>
-                    <h4>Nextcloud Office</h4>
-                    <p class="office-powered-by">powered by Collabora Online</p>
+                    <h4>Collabora Online</h4>
+                    <p class="office-powered-by">by Collabora Productivity</p>
                 </div>
                 <svg class="office-checkmark" width="24" height="24" viewBox="0 0 24 24" fill="none" xmlns="http://www.w3.org/2000/svg">
                     <circle cx="12" cy="12" r="10" fill="var(--color-nextcloud-blue)"/>