fix numpy typing import (#2395)

* fix numpy typing import

* Update the image cache

* Update the image cache

* call _apply_default_theme only if pyvista can be imported

---------

Co-authored-by: Gryfenfer97 <[email protected]>

Author: Gryfenfer97

src/ansys/mapdl/core/__init__.py

@@ -99,7 +99,8 @@
 
 _HAS_ANSYS = _check_has_ansys()
 
-_apply_default_theme()
+if _HAS_PYVISTA:
+    _apply_default_theme()
 
 BUILDING_GALLERY = False
 RUNNING_TESTS = False

src/ansys/mapdl/core/mapdl.py

@@ -18,8 +18,7 @@
 
 from matplotlib.colors import to_rgba
 import numpy as np
-from numpy._typing import DTypeLike
-from numpy.typing import NDArray
+from numpy.typing import DTypeLike, NDArray
 
 from ansys.mapdl import core as pymapdl
 from ansys.mapdl.core import LOG as logger