Add Adminbereich section with overview and user management pages to navigation, other changes

.gitea/workflows/release.yml

@@ -94,6 +94,11 @@ jobs:
       - name: Install all dependencies
         run: uv sync --all-groups
 
+      - name: Build documentation
+        run: |
+          uv  zensical
+          uv run zensical build --clean
+
       - name: Build Linux release with Nuitka
         run: |
           uv run python -m nuitka \
@@ -172,6 +177,12 @@ jobs:
         run: |
           & $env:UV_PATH sync --all-groups
 
+      - name: Build documentation
+        shell: powershell
+        run: |
+          & $env:UV_PATH run pip install zensical
+          & $env:UV_PATH run zensical build --clean
+
       - name: Build Windows release with Nuitka
         shell: powershell
         run: |