Enhance SlimmeLezer Mini documentation and configuration

[zuidwijk]

Added configuration details for SlimmeLezer Mini including type, standard, board, and project URL. Updated YAML configuration for ESPHome with new parameters and sensors.

Brief description of the changes

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.

Made for ESPHome Checklist

• Project is powered by an ESP32 or supported variant such as C3, C6, S2, S3 etc.
• Project is using ESPHome firmware
• Project name cannot contain ESPHome except in the case of ending with for ESPHome
• ESPHome configuration is open source and available for end users to modify/update
• If the device uses Wi-Fi:
  • Configuration contains esp32_improv: (documentation)
  • Configuration contains improv_serial: if there is a USB port (documentation)
• Users should be able to apply updates to your device:
  • Device can be "taken control" of by the user using the ESPHome Builder
    • Configuration includes dashboard_import: to facilitate this (documentation)
    • Configuration contains the ota.esphome component (documentation)
    • Serial flashing is not disabled
    • There are no references to secrets in the configuration
    • There are no passwords in the configuration
    • There are no static IP addresses in the configuration
    • The configuration must be valid, compile and run successfully without any user changes after taking control
    • Every entity/component (sensor, switch, etc.) must have an id defined
  • OTA Updates are provided via the update.http_request component (documentation)

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Lighthouse	1 paths audited Performance: 78 (🟢 up 18 from production) Accessibility: 97 (no change from production) Best Practices: 100 (no change from production) SEO: 92 (no change from production) PWA: - View the detailed breakdown and full score reports

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[github-actions]

This PR has been labeled as Made for ESPHome and is pending review. Please complete the checklist added to the description above.

[esphome]

Please take a look at the requested changes, and use the Ready for review button when you are done, thanks 👍

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