feat: package build

[rikled]

see: Euro-Office/DocumentServer#92

[chrip]

1. Makefile path rebranding — all onlyoffice paths are changed to euro-office across NGINX_LOG, NGINX_CASH, DS_ROOT, DS_FILES, DS_EXAMPLE. Looks correct for the rebrand.

2. Admin panel logic commented out — the ifeq block for documentserver-de/documentserver-ee products is now commented out in both the welcome page build and the M4_DS_ADMINPANEL_ENABLE m4 param. Is this intentional? If the admin panel is being removed entirely, consider adding a comment explaining why. If it's temporary, consider using a build flag instead of inline comments.

3. favicon_eo.svg — new SVG favicon added. Good touch for branding. Note: the file is missing a trailing newline (\ No newline at end of file). Consider adding one for consistency with other SVG files.

4. Welcome page HTML files — favicon references and JWT command paths updated consistently across docker.html, linux.html, linux-rpm.html, k8s.html, win.html, example-disabled.html. Looks thorough.

[rikled]

2. **Admin panel logic commented out** — the `ifeq` block for `documentserver-de`/`documentserver-ee` products is now commented out in both the welcome page build and the `M4_DS_ADMINPANEL_ENABLE` m4 param. Is this intentional? If the admin panel is being removed entirely, consider adding a comment explaining why. If it's temporary, consider using a build flag instead of inline comments.

Its commented out because this was the guard for developer and enterprise edition, so commenting this out actually activates the admin interface