fix(andreknie.de): configure Umami tracking

privat/CV/andreknie.de/Caddyfile

@@ -1,3 +1,7 @@
+www.andreknie.de {
+	redir https://andreknie.de{uri} permanent
+}
+
 andreknie.de {
 	root * /opt/andreknie/site
 	encode zstd gzip
@@ -8,6 +12,7 @@ andreknie.de {
 		X-Frame-Options "DENY"
 		Referrer-Policy "strict-origin-when-cross-origin"
 		Permissions-Policy "camera=(), geolocation=(), microphone=()"
+		Content-Security-Policy "default-src 'self'; script-src 'self' https://stats.andreknie.de; connect-src 'self' https://stats.andreknie.de; style-src 'self' 'unsafe-inline' https://fonts.googleapis.com; font-src 'self' https://fonts.gstatic.com data:; img-src 'self' data: https:; object-src 'none'; base-uri 'self'; form-action 'self'; frame-ancestors 'none'; upgrade-insecure-requests"
 	}
 
 	handle /api/* {