Option to indent code in a #region

Prerequisites

• I have written a descriptive issue title.
• I have searched all issues to ensure it has not already been reported.

Summary

When writing code, I depend heavily on regions to keep things clean. Sometimes even nested regions. I would love it if we have the option to indent the code in a region to easily find where a region starts and ends.

#region: Hello World!
Write-Host 'Hello World!
#endregion

Should be (optinally)

#region: Hello World!
    Write-Host 'Hello World!
#endregion

Would be even cooler if the indent is adjustable to 1 or 2 spaces instead of 4

Proposed Design

Add option in the formatter to indent regions and specifying by how many spaces.

從 issue 中描述的 formatter 進入點開始，確定目前如何處理區域邊界和縮排。定義可設定的縮排量，並驗證格式化在啟用該選項時可以選擇性地縮排巢狀區域中的程式碼，而在停用該選項時保留現有行為。