add rewrite rule from official docs to nginx examples (#1635)

Without this rewrite rule you can't access some pages (like LDAP config).
These lines are present in the official docs: https://docs.nextcloud.com/server/latest/admin_manual/installation/nginx.html



Signed-off-by: aney1 <aney1@users.noreply.github.com>

.examples/docker-compose/insecure/mariadb/fpm/web/nginx.conf

@@ -125,6 +125,9 @@ http {
         # then Nginx will encounter an infinite rewriting loop when it prepends `/index.php`
         # to the URI, resulting in a HTTP 500 error response.
         location ~ \.php(?:$|/) {
+            # Required for legacy support
+            rewrite ^/(?!index|remote|public|cron|core\/ajax\/update|status|ocs\/v[12]|updater\/.+|oc[ms]-provider\/.+|.+\/richdocumentscode\/proxy) /index.php$request_uri;
+
             fastcgi_split_path_info ^(.+?\.php)(/.*)$;
             set $path_info $fastcgi_path_info;
 

.examples/docker-compose/insecure/postgres/fpm/web/nginx.conf

@@ -125,6 +125,9 @@ http {
         # then Nginx will encounter an infinite rewriting loop when it prepends `/index.php`
         # to the URI, resulting in a HTTP 500 error response.
         location ~ \.php(?:$|/) {
+            # Required for legacy support
+            rewrite ^/(?!index|remote|public|cron|core\/ajax\/update|status|ocs\/v[12]|updater\/.+|oc[ms]-provider\/.+|.+\/richdocumentscode\/proxy) /index.php$request_uri;
+
             fastcgi_split_path_info ^(.+?\.php)(/.*)$;
             set $path_info $fastcgi_path_info;
 

.examples/docker-compose/with-nginx-proxy/mariadb/fpm/web/nginx.conf

@@ -125,6 +125,9 @@ http {
         # then Nginx will encounter an infinite rewriting loop when it prepends `/index.php`
         # to the URI, resulting in a HTTP 500 error response.
         location ~ \.php(?:$|/) {
+            # Required for legacy support
+            rewrite ^/(?!index|remote|public|cron|core\/ajax\/update|status|ocs\/v[12]|updater\/.+|oc[ms]-provider\/.+|.+\/richdocumentscode\/proxy) /index.php$request_uri;
+
             fastcgi_split_path_info ^(.+?\.php)(/.*)$;
             set $path_info $fastcgi_path_info;
 

.examples/docker-compose/with-nginx-proxy/postgres/fpm/web/nginx.conf

@@ -125,6 +125,9 @@ http {
         # then Nginx will encounter an infinite rewriting loop when it prepends `/index.php`
         # to the URI, resulting in a HTTP 500 error response.
         location ~ \.php(?:$|/) {
+            # Required for legacy support
+            rewrite ^/(?!index|remote|public|cron|core\/ajax\/update|status|ocs\/v[12]|updater\/.+|oc[ms]-provider\/.+|.+\/richdocumentscode\/proxy) /index.php$request_uri;
+
             fastcgi_split_path_info ^(.+?\.php)(/.*)$;
             set $path_info $fastcgi_path_info;