fix(logging): handle media server connection refused error/toast (#748)

* fix(logging): handle media server connection refused error/toast

Properly log as connection refused if the jellyfin/emby server is unreachable. Previously it used to
throw a credentials error which lead to a lot of confusion

* refactor(i8n): extract translation keys

* refactor(auth): error message for a more consistent format

* refactor(auth/errors): use custom error types and error codes instead of abusing error messages

* refactor(i8n): replace connection refused translation key with invalidurl

* fix(error): combine auth and api error class into a single one called network error

* fix(error): use the new network error and network error codes in auth/api

* refactor(error): rename NetworkError to ApiError

server/api/jellyfin.ts

@@ -1,6 +1,8 @@
 /* eslint-disable @typescript-eslint/no-explicit-any */
+import { ApiErrorCode } from '@server/constants/error';
 import availabilitySync from '@server/lib/availabilitySync';
 import logger from '@server/logger';
+import { ApiError } from '@server/types/error';
 import type { AxiosInstance } from 'axios';
 import axios from 'axios';
 
@@ -129,9 +131,33 @@ class JellyfinAPI {
           Pw: Password,
         }
       );
+
       return account.data;
     } catch (e) {
-      throw new Error('Unauthorized');
+      const status = e.response?.status;
+
+      const networkErrorCodes = new Set([
+        'ECONNREFUSED',
+        'EHOSTUNREACH',
+        'ENOTFOUND',
+        'ETIMEDOUT',
+        'ECONNRESET',
+        'EADDRINUSE',
+        'ENETDOWN',
+        'ENETUNREACH',
+        'EPIPE',
+        'ECONNABORTED',
+        'EPROTO',
+        'EHOSTDOWN',
+        'EAI_AGAIN',
+        'ERR_INVALID_URL',
+      ]);
+
+      if (networkErrorCodes.has(e.code) || status === 404) {
+        throw new ApiError(status, ApiErrorCode.InvalidUrl);
+      }
+
+      throw new ApiError(status, ApiErrorCode.InvalidCredentials);
     }
   }