Refactor SettingsDeletePassword and PasswordManager to improve parameter handling, enhance UUID validation, and ensure proper type casting for password verification

https://github.com/nosial/Socialbox-PHP/issues/59

src/Socialbox/Managers/PasswordManager.php

@@ -148,6 +148,10 @@
             {
                 $peerUuid = $peerUuid->getUuid();
             }
+            elseif(!Validator::validateUuid($peerUuid))
+            {
+                throw new InvalidArgumentException('The given internal peer UUID is not a valid UUID V4');
+            }
 
             try
             {