Smarter frontControllerDirectory method

The previous method simply returned `web` if there was a file named `craft` in the $sitePath (which means we’re running Craft 3).

The problem is that many sites, especially upgraded ones, will be serving out of `public`. This is also in line with the default Forge/ServerPilot default dirs.

So we test to see if either `/web` or `/public` exist, and return them if so. Otherwise default to the current method.

Signed-off-by: Andrew Welch <andrew@nystudio107.com>

cli/drivers/CraftValetDriver.php

@@ -23,6 +23,14 @@ public function serves($sitePath, $siteName, $uri)
      */
     public function frontControllerDirectory($sitePath)
     {
+        $dirs = ['web', 'public'];
+
+        foreach ($dirs as $dir) {
+            if (is_dir($sitePath.'/'.$dir)) {
+                return $dir;
+            }
+        }
+        // Give up, and just return the default
         return is_file($sitePath.'/craft') ? 'web' : 'public';
     }