Implemented a global variable for acceptable handlers

BotResources.py

@@ -2,6 +2,8 @@ import sound
 import configparser
 from os.path import exists
 
+PDB_ACCEPTABLE_HANDLERS = ['gqrx', 'op25']
+
 
 def check_if_config_exists():
     if exists('./config.ini'):
@@ -167,7 +169,7 @@ def get_handler():
     handler = None
     while not handler:
         handler = str(input(f"Please enter the name of the handler you would like to use:\t"))
-        if handler == "gqrx":
+        if handler in PDB_ACCEPTABLE_HANDLERS:
             return handler
         elif handler == '':
             return handler