fix(mcp): correct the ChatGPT and Claude connector steps (#714)

Fixes the step-by-step instructions on the AI Connector screen to match
the current app UIs.

**ChatGPT**
- Developer mode is under **Settings → Security and login → Developer
mode** (was: Settings → Connectors → Advanced).
- Add a connector via the **+ button in Plugins, top right** (was: a
"Create" button under Connectors).

**Claude Desktop**
- Click **"Add" in the top right, then "Add custom connector"** (was:
just "Add custom connector").

Spanish translations updated in `lang/es.json` accordingly.

lang/es.json

@@ -2281,11 +2281,11 @@
     "Pick your app, then follow the steps. You sign in and approve the connection — no token needed.": "Elige tu app y sigue los pasos. Inicias sesión y apruebas la conexión: no hace falta ningún token.",
     "Claude Desktop": "Claude Desktop",
     "Open Settings → Connectors in Claude Desktop.": "Abre Ajustes → Conectores en Claude Desktop.",
-    "Click \"Add custom connector\".": "Haz clic en «Añadir conector personalizado».",
+    "Click \"Add\" in the top right, then \"Add custom connector\".": "Haz clic en «Añadir» arriba a la derecha y luego en «Añadir conector personalizado».",
     "Give it a name and paste this URL:": "Ponle un nombre y pega esta URL:",
     "Approve the connection on the Whisper Money screen that opens.": "Aprueba la conexión en la pantalla de Whisper Money que se abre.",
-    "Turn on developer mode: Settings → Connectors → Advanced → Developer mode. Custom connectors are only available with it on.": "Activa el modo desarrollador: Ajustes → Conectores → Avanzado → Modo desarrollador. Los conectores personalizados solo están disponibles con él activado.",
-    "In Connectors, click \"Create\".": "En Conectores, haz clic en «Crear».",
+    "Turn on developer mode: Settings → Security and login → Developer mode. Custom connectors are only available with it on.": "Activa el modo desarrollador: Ajustes → Seguridad e inicio de sesión → Modo desarrollador. Los conectores personalizados solo están disponibles con él activado.",
+    "In Plugins, click the + button in the top right.": "En Plugins, haz clic en el botón + de arriba a la derecha.",
     "Connect with Claude Code": "Conectar con Claude Code",
     "For developers. Claude Code signs in with a token instead of the browser flow.": "Para desarrolladores. Claude Code inicia sesión con un token en lugar del flujo del navegador.",
     "Connect to :app": "Conectar con :app",

resources/js/pages/settings/mcp.tsx

@@ -144,7 +144,7 @@ export default function Mcp() {
             label: __('Claude Desktop'),
             steps: [
                 __('Open Settings → Connectors in Claude Desktop.'),
-                __('Click "Add custom connector".'),
+                __('Click "Add" in the top right, then "Add custom connector".'),
                 <>
                     {__('Give it a name and paste this URL:')}
                     {oauthUrlBlock}
@@ -158,9 +158,9 @@ export default function Mcp() {
             label: __('ChatGPT'),
             steps: [
                 __(
-                    'Turn on developer mode: Settings → Connectors → Advanced → Developer mode. Custom connectors are only available with it on.',
+                    'Turn on developer mode: Settings → Security and login → Developer mode. Custom connectors are only available with it on.',
                 ),
-                __('In Connectors, click "Create".'),
+                __('In Plugins, click the + button in the top right.'),
                 <>
                     {__('Give it a name and paste this URL:')}
                     {oauthUrlBlock}