[📃 Docs]: inconsistent provider ordering on documentation overview page

[gecube]

Summary

On the documentation page
👉 https://docs.keephq.dev/providers/overview,
the list of providers appears mostly sorted alphabetically — except for a few anomalies.

For example, FluxCD appears immediately after ArgoCD, which breaks the expected alphabetical order.

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🧩 Steps to reproduce

1. Open https://docs.keephq.dev/providers/overview
2. Scroll through the list of providers
3. Observe that:
   • Most entries are sorted alphabetically
   • Some, like FluxCD, appear out of order (e.g., after ArgoCD)

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💡 Expected behavior

• The list of providers should be consistently sorted — ideally fully alphabetical, or
• Grouped logically by provider type (e.g. “CI/CD”, “Monitoring”, “Databases”, “Notifications”), with clear section headers.

Either approach is fine as long as it’s consistent and predictable.

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✅ Proposed improvement

• Ensure the provider list on /providers/overview is sorted alphabetically by name,
  or
• Introduce clear categorization (for example: CI/CD, Infrastructure, Databases, Messaging) and order providers accordingly.

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🧠 Rationale

Consistent ordering:

• Makes documentation easier to navigate visually
• Helps users quickly locate integrations by name
• Improves the perceived quality and structure of the docs

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Labels: type:enhancement area:documentation priority:low