On channel watch error, mark the channel offline and try another

channel.py

@@ -397,5 +397,6 @@ async def send_watch(self) -> bool:
             async with self._twitch.request("HEAD", stream_chunk_url) as head_response:
                 return head_response.status == 200
         except aiohttp.InvalidURL as exc:
-            # Temporarily log the entire response into the output
-            raise MinerException(available_chunks) from exc
+            return False
+            ## Temporarily log the entire response into the output
+            #raise MinerException(available_chunks) from exc

twitch.py

@@ -888,6 +888,10 @@ async def _watch_loop(self) -> NoReturn:
             succeeded: bool = await channel.send_watch()
             if not succeeded:
                 logger.log(CALL, f"Watch requested failed for channel: {channel.name}")
+                logger.info(f"Failed to watch {channel.name} so marking as offline & removing...")
+                channel.set_offline()
+                channel.remove()
+                continue
             elif not self.gui.progress.is_counting():
                 # If the previous update was more than 60s ago, and the progress tracker
                 # isn't counting down anymore, that means Twitch has temporarily