Add isort and ruff linter (#6575)

* Add isort and ruff linter

Both linters are pretty common among modern python code bases.

The isort tool provides stable sorting and grouping, as well as pruning
of unused imports.

Ruff is a modern linter, that is very fast due to being written in rust.
It can detect many common issues in a python codebase.

Removes the pylint dev requirement, since ruff replaces it.

* treewide: fix issues detected by ruff

* treewide: fix bare except clauses

* .devcontainer: Set up isort

* treewide: optimize imports

* treewide: apply black

* treewide: make regex patterns raw strings

This is necessary for escape sequences to be properly recognized.

frigate/comms/mqtt.py

@@ -1,6 +1,5 @@
 import logging
 import threading
-
 from typing import Any, Callable
 
 import paho.mqtt.client as mqtt
@@ -8,7 +7,6 @@ import paho.mqtt.client as mqtt
 from frigate.comms.dispatcher import Communicator
 from frigate.config import FrigateConfig
 
-
 logger = logging.getLogger(__name__)
 
 
@@ -177,10 +175,10 @@ class MqttClient(Communicator):  # type: ignore[misc]
             f"{self.mqtt_config.topic_prefix}/restart", self.on_mqtt_command
         )
 
-        if not self.mqtt_config.tls_ca_certs is None:
+        if self.mqtt_config.tls_ca_certs is not None:
             if (
-                not self.mqtt_config.tls_client_cert is None
-                and not self.mqtt_config.tls_client_key is None
+                self.mqtt_config.tls_client_cert is not None
+                and self.mqtt_config.tls_client_key is not None
             ):
                 self.client.tls_set(
                     self.mqtt_config.tls_ca_certs,
@@ -189,9 +187,9 @@ class MqttClient(Communicator):  # type: ignore[misc]
                 )
             else:
                 self.client.tls_set(self.mqtt_config.tls_ca_certs)
-        if not self.mqtt_config.tls_insecure is None:
+        if self.mqtt_config.tls_insecure is not None:
             self.client.tls_insecure_set(self.mqtt_config.tls_insecure)
-        if not self.mqtt_config.user is None:
+        if self.mqtt_config.user is not None:
             self.client.username_pw_set(
                 self.mqtt_config.user, password=self.mqtt_config.password
             )