Add own category for docker installation in admin getting started guide

[AlexAndBear]

No description provided.

[Copilot]

Pull Request Overview

This PR adds documentation for deploying OpenCloud using Docker, Docker Compose, and Docker Compose for local testing.

• Introduces a new Docker installation guide.
• Provides a production-ready Docker Compose deployment guide with SSL setup instructions.
• Offers a Docker Compose local installation guide for testing and development.

Reviewed Changes

Copilot reviewed 3 out of 4 changed files in this pull request and generated no comments.

File	Description
docs/admin/getting-started/container/docker.md	New guide detailing steps for setting up OpenCloud with Docker.
docs/admin/getting-started/container/docker-compose.md	Detailed walkthrough for deploying OpenCloud in production with Docker Compose.
docs/admin/getting-started/container/docker-compose-local.md	Step-by-step guide for a local Docker Compose setup of OpenCloud.

Files not reviewed (1)

• docs/admin/getting-started/container/category.json: Language not supported

Comments suppressed due to low confidence (2)

docs/admin/getting-started/container/docker-compose.md:10

• Consider changing 'a internet facing OpenCloud' (line 10) to 'an internet facing OpenCloud' to fix the article usage.

OpenCloud with Docker Compose

docs/admin/getting-started/container/docker-compose.md:180

• The image file name 'subordinate-ca's.png' includes an apostrophe which might cause issues; consider renaming the file to 'subordinate-cas.png' or a similar safe alternative.

<img src={require("./../img/docker-compose/subordinate-ca's.png").default} alt="Certificate Details" width="500"/>

[Svanvith]

LGTM