Added Controls testing + documentation

src/myfasthtml/controls/Mouse.py

@@ -7,6 +7,12 @@ from myfasthtml.core.instances import MultipleInstance
 
 
 class Mouse(MultipleInstance):
+  """
+  Represents a mechanism to manage mouse event combinations and their associated commands.
+
+  This class is used to add, manage, and render mouse event sequences with corresponding
+  commands, providing a flexible way to handle mouse interactions programmatically.
+  """
   def __init__(self, parent, _id=None, combinations=None):
     super().__init__(parent, _id=_id)
     self.combinations = combinations or {}