Fix Text.__init__ docstring and parameter docs

Author: AdityaGupta716

fury/actor/core.py

@@ -159,6 +159,19 @@ class Text(gfx.Text, Actor):
     """Text actor class."""
 
     def __init__(self, text, material, position=None, **kwargs):
+        """Initialize a Text actor.
+
+        Parameters
+        ----------
+        text : str
+            The text content.
+        material : TextMaterial
+            The material object.
+        position : tuple, optional
+            Position of the text in 3D space (x, y, z).
+        **kwargs : dict
+            Additional keyword arguments passed to the parent class.
+        """
         super().__init__(text=text, material=material, **kwargs)
         if position is not None:
             self.local.position = position