update regex

Author: themsaid

src/Manager.php

@@ -261,7 +261,8 @@ public function collectFromViews()
         $functions = ['trans', 'trans_choice', 'Lang::get', 'Lang::choice', 'Lang::trans', 'Lang::transChoice', '@lang', '@choice'];
 
         $pattern =
-            // See http://regexr.com/392hu
+            // See https://regex101.com/r/jS5fX0/1
+            '[^\w]'. // Must not start with any alpha numeric character or underscore
             '('.implode('|', $functions).')'.// Must start with one of the functions
             "\(".// Match opening parentheses
             "[\'\"]".// Match " or '