Surface Werkzeug and other internal logging to loguru at orig level (#1220)

- With the previous logic all standard logging logs are downgraded to
DEBUG5 regardless of their initial level. This will hide any fatal
errors making debugging harder.

- Since Werkzeug is quite chatty at INFO level, anything at INFO or
  above is still downgraded to DEBUG5. This maintains the current
  behavior for those log messages.

Author: jinnatar

mapadroid/utils/logging.py

@@ -295,7 +295,14 @@ def __init__(self, *args, **kwargs):
 
     def emit(self, record):
         with logger.contextualize(identifier=self.log_identifier):
-            logger.opt(depth=6, exception=record.exc_info).log("DEBUG5", record.getMessage())
+            level = record.levelno
+            # Downgrade anything INFO and lower to DEBUG5 to match legacy behavior.
+            # Werkzeug is a bit too chatty at INFO level for it to be useful.
+            if level <= logging.INFO:
+                level = "DEBUG5"
+            else:
+                level = logging.getLevelName(level)
+            logger.opt(depth=6, exception=record.exc_info).log(level, record.getMessage())
 
 
 # this is being used to change log level for gevent/Flask/Werkzeug