Add Ariston Lydos Boiler Card (frontend plugin)

[DJTech84]

Checklist

• I've read the publishing documentation.
• I've added the HACS action to my repository.
• (For integrations only) I've added the hassfest action to my repository.
• The actions are passing without any disabled checks in my repository.
• I've added a link to the action run on my repository below in the links section.
• I've created a new release of the repository after the validation actions were run successfully.

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Description

This PR adds a new Lovelace card for Ariston Lydos WiFi water heaters.

• Type: Frontend plugin
• Repository: https://github.com/djtech84/boiler-card
• JSON path: repositories/frontend/ariston-lydos-boiler-card.json

Tested and ready for inclusion in the HACS default repository.

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Links

Link to current release: https://github.com/djtech84/boiler-card/releases/tag/v1.0.0
Link to successful HACS action (without the ignore key`): https://github.com/DJTech84/default/actions/runs/21796536849

[hacs-bot]

Limit your PR to a single file change. This PR modifies 2 files. Please create separate PRs for each repository you want to add.