refactor: added config file and moved constants

- Moved hardcoded configuration constants to a dedicated config.py file.
- Created VideoConfig, AudioConfig, MainConfig, and Settings classes in config.py

ref: N25B-236

src/robot_interface/utils/microphone.py

@@ -82,11 +82,12 @@ def choose_mic_arguments(audio):
     :rtype: dict | None
     """
     microphone_name = None
+    microhopone_prefix = "--microphone="
     for i, arg in enumerate(sys.argv):
-        if arg == "--microphone" and len(sys.argv) > i+1:
+        if arg == microhopone_prefix and len(sys.argv) > i+1:
             microphone_name = sys.argv[i+1].strip()
-        if arg.startswith("--microphone="):
-            microphone_name = arg[13:].strip()
+        if arg.startswith(microhopone_prefix):
+            microphone_name = arg[len(microhopone_prefix):].strip()
 
     if not microphone_name: return None