[web] Simplify WebSocket creation and remove unused translation

web-src/src/i18n/de.json

@@ -574,7 +574,6 @@
   },
   "server": {
     "connection-failed": "Fehler bei Verbindung zum OwnTone-Server",
-    "missing-port": "Fehlender Websocket-Port",
     "request-failed": "Anfrage gescheitert (Status: {status} {cause} {url})",
     "queue-saved": "Warteschlange zu Playlist {name} gesichert",
     "appended-tracks": "{count} Track an die Abspielliste angehängt|{count} Tracks an die Abspielliste angehängt",

web-src/src/i18n/en.json

@@ -573,7 +573,6 @@
   },
   "server": {
     "connection-failed": "Failed to connect to OwnTone server",
-    "missing-port": "Missing websocket port",
     "request-failed": "Request failed (status: {status} {cause} {url})",
     "queue-saved": "Queue saved to playlist {name}",
     "appended-tracks": "{count} track appended to the queue|{count} tracks appended to the queue",

web-src/src/i18n/fr.json

@@ -573,7 +573,6 @@
   },
   "server": {
     "connection-failed": "Échec de connexion au serveur",
-    "missing-port": "Port websocket manquant",
     "request-failed": "La requête a échoué (status: {status} {cause} {url})",
     "queue-saved": "La file d’attente enregistrée dans la liste de lecture {name}",
     "appended-tracks": "{count} piste ajoutée à la file d’attente|{count} pistes ajoutées à la file d’attente",

web-src/src/i18n/zh-CN.json

@@ -573,7 +573,6 @@
   },
   "server": {
     "connection-failed": "无法连接到 OwnTone 服务器",
-    "missing-port": "缺少 websocket 端口",
     "request-failed": "请求失败 (状态：{status} {cause} {url})",
     "queue-saved": "清单以添加到播放列表 {name}",
     "appended-tracks": "已附加到队列的 {count} 只曲目|已附加到队列的 {count} 只曲目",

web-src/src/i18n/zh-TW.json

@@ -573,7 +573,6 @@
   },
   "server": {
     "connection-failed": "無法連接到 OwnTone 伺服器",
-    "missing-port": "缺少 websocket 端口",
     "request-failed": "請求失敗 (狀態：{status} {cause} {url})",
     "queue-saved": "清單以新增到播放列表 {name}",
     "appended-tracks": "已附加到隊列的 {count} 首曲目|已附加到隊列的 {count} 首曲目",