Fix default values of sharing capabilities

The problem is the UI used a different default than the capabilities.
So when you never touched the config, the setting in admins said "disabled"
while the capabilities said "enabled".

apps/files_sharing/lib/capabilities.php

@@ -49,20 +49,20 @@ class Capabilities implements ICapability {
 		$public['enabled'] = $this->config->getAppValue('core', 'shareapi_allow_links', 'yes') === 'yes';
 		if ($public['enabled']) {
 			$public['password'] = [];
-			$public['password']['enforced'] = ($this->config->getAppValue('core', 'shareapi_enforce_links_password', 'yes') === 'yes');
+			$public['password']['enforced'] = ($this->config->getAppValue('core', 'shareapi_enforce_links_password', 'no') === 'yes');
 
 			$public['expire_date'] = [];
-			$public['expire_date']['enabled'] = $this->config->getAppValue('core', 'shareapi_default_expire_date', 'yes') === 'yes';
+			$public['expire_date']['enabled'] = $this->config->getAppValue('core', 'shareapi_default_expire_date', 'no') === 'yes';
 			if ($public['expire_date']['enabled']) {
 				$public['expire_date']['days'] = $this->config->getAppValue('core', 'shareapi_expire_after_n_days', '7');
-				$public['expire_date']['enforced'] = $this->config->getAppValue('core', 'shareapi_enforce_expire_date', 'yes') === 'yes';
+				$public['expire_date']['enforced'] = $this->config->getAppValue('core', 'shareapi_enforce_expire_date', 'no') === 'yes';
 			}
 
-			$public['send_mail'] = $this->config->getAppValue('core', 'shareapi_allow_public_notification', 'yes') === 'yes';
+			$public['send_mail'] = $this->config->getAppValue('core', 'shareapi_allow_public_notification', 'no') === 'yes';
 		}
 		$res["public"] = $public;
 
-		$res['user']['send_mail'] = $this->config->getAppValue('core', 'shareapi_allow_mail_notification', 'yes') === 'yes';
+		$res['user']['send_mail'] = $this->config->getAppValue('core', 'shareapi_allow_mail_notification', 'no') === 'yes';
 
 		$res['resharing'] = $this->config->getAppValue('core', 'shareapi_allow_resharing', 'yes') === 'yes';