[buglink]: Added type-hint 'App'

buglink/buglink.php

@@ -5,6 +5,8 @@
  * Version: 1.0
  * Author: Mike Macgirvin <mike@macgirvin.com>
  */
+
+use Friendica\App;
 use Friendica\Core\Addon;
 use Friendica\Core\L10n;
 
@@ -18,7 +20,7 @@ function buglink_uninstall()
 	Addon::unregisterHook('page_end', 'addon/buglink/buglink.php', 'buglink_active');
 }
 
-function buglink_active(&$a, &$b)
+function buglink_active(App $a, &$b)
 {
 	$b .= '<div id="buglink_wrapper" style="position: fixed; bottom: 5px; left: 5px;"><a href="https://github.com/friendica/friendica/issues" target="_blank" title="' . L10n::t('Report Bug') . '"><img src="addon/buglink/bug-x.gif" alt="' . L10n::t('Report Bug') . '" /></a></div>';
 }