nginx: Perform no other regex matching
nginx: Perform no other regex matching

This fixes an issue where some files from Spreed WebRTC are not handled by Spreed
WebRTC, e.g. .js files when using this block: `location ~* \.(?:css|js)$ {`.

strukturag/owncloud-spreedme,strukturag/nextcloud-spreedme,strukturag/nextcloud-spreedme,strukturag/nextcloud-spreedme,strukturag/owncloud-spreedme,strukturag/nextcloud-spreedme,strukturag/owncloud-spreedme