chore: Update interactivity via env var. (#534)

Update interactivity via env var.


![image](https://github.com/user-attachments/assets/b105fc2a-4979-4302-b72b-adf05f26d32d)

Author: prmukherj

src/ansys/fluent/visualization/config.py

@@ -20,8 +20,8 @@
 # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 # SOFTWARE.
 """Configuration variables for visualization."""
-
 from enum import Enum
+import os
 import warnings
 
 from ansys.fluent.core import PyFluentDeprecationWarning
@@ -46,7 +46,7 @@ class Config:
 
     def __init__(self):
         """__init__ method of Config class."""
-        self._interactive = True
+        self._interactive = os.getenv("PYFLUENT_VIZ_BLOCKING") != "1"
         self._view = View.ISOMETRIC
         self._single_window = False
         self._two_dimensional_renderer = "pyvista"