Set default date to today in input frame

src/ui_manager.py

@@ -1,3 +1,4 @@
+from datetime import datetime
 import os
 import logging
 import sys
@@ -122,6 +123,9 @@ class UIManager:
             row=6, column=1, sticky="ew", padx=5, pady=2
         )
 
+        # Set default date to today
+        date_var.set(datetime.now().strftime("%m/%d/%Y"))
+
         # Return all UI elements and variables
         return {
             "frame": input_frame,