feat: close ChatGPTNextWeb#3304 use = instead of : to map model name in CUSTOM_MODELS

Author: Yidadaa

app/utils/model.ts

@@ -26,7 +26,7 @@ export function collectModelTable(
       const available = !m.startsWith("-");
       const nameConfig =
         m.startsWith("+") || m.startsWith("-") ? m.slice(1) : m;
-      const [name, displayName] = nameConfig.split(":");
+      const [name, displayName] = nameConfig.split("=");
 
       // enable or disable all models
       if (name === "all") {