Add Caddy Server Support Alongside Nginx (#600)

* added enum

* add config for caddy

* add svg icon

* add caddy service class

* wip

* install caddy

* create base Caddyfile with common snippets

* Create a systemd service to run Caddy in the background.

* create uninstall file

* wip

* create path

* create vhost

* get vhost

* delete site

* add php version change file

* add custom ssl

* create redirect file

* add vhost for caddy site & load balancer

* update svg

* fix caddy icon

* fix style

* add systemctl reload method

* Reload systemd after modifying the Caddy service file.

* add caddy

* added tests

* format with pint

* prevent multiple web server installations

* added error log & access log

app/SSH/Systemd/Systemd.php

@@ -87,4 +87,16 @@ public function disable(string $unit): string
 
         return $this->server->ssh()->exec($command, sprintf('disable-%s', $unit));
     }
+
+    /**
+     * @throws SSHError
+     */
+    public function reload(): string
+    {
+        $command = <<<'EOD'
+            sudo systemctl daemon-reload
+        EOD;
+
+        return $this->server->ssh()->exec($command, 'reload-systemctl');
+    }
 }