Improvement request: Allow normal users to select pod or cluster while deploying an instance

##### ISSUE TYPE
* Bug Report

##### COMPONENT NAME
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UI
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##### CLOUDSTACK VERSION
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4.19.1.2
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##### CONFIGURATION
We have 2 clusters called CL01 and CL02. Both of these clusters are dedicated to Account A.
Account A has a role of "User".

##### OS / ENVIRONMENT
Red Hat Enterprise Linux 9.0 using KVM

##### SUMMARY
User accounts in account A have access to 2 different clusters called CL01 and CL02 which are dedicated to account A.
If a user creates a new instance through the UI, the UI doesn't give the user a choice on which cluster they want their instance created. The UI does this selection for them.

If the user creates the instance via the API (ansible script), they are able to choose the cluster and the instance gets deployed.
This tells me that the user (role) does not limit the user in choosing the cluster on which the new instance should land.

If a Root Admin creates a new instance via the UI, they however are able to choose the POD, cluster and even host so the functionality is there in the UI. It's just not given to someone with a "User" role.

##### STEPS TO REPRODUCE
Create a new account called A and assign it the "User" role.
Create a cluster and dedicate this cluster to account A.
Create a second cluster and dedicate this cluster to account A.
As a user from account A, login to the UI and create a new instance.
After selecting the zone in which the new instance should be created, try to select the pod, cluster or host. These options will not be given.

Perform the same steps but now as a Root Admin user and you will be given the choice of pod, cluster and/or host upon creation of a new instance.

##### EXPECTED RESULTS

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After logging in with the role "User", I was expecting to be able to select a cluster on which I could deploy my new instance.
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##### ACTUAL RESULTS

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While logged in as someone with the role "User", I'm not given the choice of selecting the pod, cluster or host upon which my new instance should land.
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從選取 zone 後的 CloudStack UI 執行個體部署流程開始，並比較 User 與 Root Admin 路徑；報告也將 API 部署路徑列為可運作的比較對象。完成的標準是：擁有多個專用 cluster 的 account 中的 User 可以選取獲准的 pod、cluster 或 host，並成功部署執行個體。

由索引模型根據 Issue 內容生成。