doc: add a doc for deploying Object Storage (#4777)

* Add a doc for deploying Object Storage

* add uninstall.md

docs/4.0/docs/guides/objectstorage/install.md

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+---
+sidebar_position: 1
+---
+
+# Install Object Storage
+
+Download the Helm charts.
+
+```bash
+curl -O https://raw.githubusercontent.com/minio/operator/master/helm-releases/operator-5.0.6.tgz
+```
+
+Install Operator.
+
+```bash
+helm install --namespace minio-system --create-namespace minio-operator operator-5.0.6.tgz
+```
+
+Install Minio, Controller, etc.
+
+```bash
+# DOMAIN is the domain name for the Sealos cluster
+# Set environment variables for Minio admin account (default Minio admin account is username/passw0rd)
+# -e minioAdminUser={16-character random alphanumeric string} -e minioAdminPassword={32-character random alphanumeric string}
+sealos run ghcr.io/labring/sealos-cloud-objectstorage:latest -e cloudDomain={DOMAIN}
+```

docs/4.0/docs/guides/objectstorage/uninstall.md

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+---
+sidebar_position: 2
+---
+
+# Uninstall Object Storage
+
+Installation of the Object Storage failed, you can use the script to clean up the remaining resources. Uninstalling the
+Object Storage can also be done using the script to clean up.
+
+```bash
+#!/usr/bin/env bash
+set +e
+
+kubectl delete app objectstorage -n app-system
+kubectl delete ns objectstorage-system objectstorage-frontend
+helm uninstall minio-operator -n minio-system
+kubectl delete ns minio-system
+kubectl delete crd objectstoragebuckets.objectstorage.sealos.io objectstorageusers.objectstorage.sealos.io
+kubectl delete clusterrole objectstorage-manager-role objectstorage-metrics-reader objectstorage-proxy-role
+kubectl delete clusterrolebinding objectstorage-manager-rolebinding objectstorage-proxy-rolebinding
+```

docs/4.0/i18n/zh-Hans/guides/objectstorage/install.md

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+---
+sidebar_position: 1
+---
+
+# 部署对象存储
+
+下载 helm 图表。
+
+```bash
+curl -O https://raw.githubusercontent.com/minio/operator/master/helm-releases/operator-5.0.6.tgz
+```
+
+安装 minio-operator。
+
+```bash
+helm install --namespace minio-system --create-namespace minio-operator operator-5.0.6.tgz
+```
+
+安装 Minio、Controller 等。
+
+```bash
+# DOMAIN 是 Sealos 集群的域名
+# 环境变量设置 Minio 管理员账户（默认的 Minio 管理员账户为 username/passw0rd）
+# -e minioAdminUser={16位随机大小写字符串} -e minioAdminPassword={32位随机大小写字符串}
+sealos run ghcr.io/labring/sealos-cloud-objectstorage:latest -e cloudDomain={DOMAIN}
+```

docs/4.0/i18n/zh-Hans/guides/objectstorage/uninstall.md

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+---
+sidebar_position: 2
+---
+
+# 卸载对象存储
+
+安装「对象存储」失败，可以使用脚本清理残留资源，卸载「对象存储」也可以使用脚本清理。
+
+```bash
+#!/usr/bin/env bash
+set +e
+
+kubectl delete app objectstorage -n app-system
+kubectl delete ns objectstorage-system objectstorage-frontend
+helm uninstall minio-operator -n minio-system
+kubectl delete ns minio-system
+kubectl delete crd objectstoragebuckets.objectstorage.sealos.io objectstorageusers.objectstorage.sealos.io
+kubectl delete clusterrole objectstorage-manager-role objectstorage-metrics-reader objectstorage-proxy-role
+kubectl delete clusterrolebinding objectstorage-manager-rolebinding objectstorage-proxy-rolebinding
+```