Add labels to Docker images

Dockerfile

@@ -13,3 +13,8 @@ FROM nginx as ki-frontend
 
 COPY --from=builder /dist/ /usr/share/nginx/html/
 COPY etc/nginx/conf.d/default.conf /etc/nginx/conf.d/default.conf
+
+LABEL org.opencontainers.image.source=https://git.wtf-eg.de/kompetenzinventar/ki-frontend.git
+LABEL org.opencontainers.image.url=https://git.wtf-eg.de/kompetenzinventar/ki-frontend
+LABEL org.opencontainers.image.documentation=https://git.wtf-eg.de/kompetenzinventar/ki-frontend#docker
+LABEL org.opencontainers.image.vendor="WTF Kooperative eG"

src/components/Footer.vue

@@ -13,7 +13,7 @@ SPDX-License-Identifier: AGPL-3.0-or-later
           <div class="fw-bold text-white mb-2">Kompetenzinventar</div>
           <ul class="list-unstyled">
             <li><a href="https://git.wtf-eg.de/kompetenzinventar">Quellcode</a></li>
-            <li><a href="https://git.wtf-eg.de/kompetenzinventar/ki-doku/issues/new">Problem melden</a></li>
+            <li><a href="https://git.wtf-eg.de/kompetenzinventar/ki-doku/issues/new/choose">Problem melden</a></li>
           </ul>
         </div>
       </div>