Update ESP32 Relay x1 index.md

[yaleman]

Brief description of the changes

Fixed example config and pin references on ESP32 Relay x1.

Type of changes

• New device
• Update existing device
• Removing a device
• General cleanup
• Other

Checklist:

• There are no passwords or secrets references in any examples.
  The only exceptions are !secret wifi_ssid and !secret wifi_password.
• The wifi or ethernet block has no static / manual ip address specified.
• The first configuration provided should be hardware definitions only.
  A more involved example can be provided in a separate configuration block.

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[Copilot]

Pull request overview

This PR updates the documentation for the ESP32 Relay x1 device page to correct the GPIO pin references and adjust the example automation behavior.

Changes:

• Update the GPIO pinout table to reflect the correct Button/Relay/LED GPIO mappings.
• Update the Basic Config example to use the corrected GPIOs for the status LED, relay switch, and button input.
• Change the button action from always turning the relay on to toggling the relay state.