doc(Drawer): add ZIndex parameter documentation

[ArgoZhang]

add ZIndex parameter documentation

Summary of the changes (Less than 80 chars)

简单描述你更改了什么, 不超过80个字符；如果有关联 Issue 请在下方填写相关编号

Description

fixes #5397

Regression?

• Yes
• No

[If yes, specify the version the behavior has regressed from]

[是否影响老版本]

Risk

• High
• Medium
• Low

[Justify the selection above]

Verification

• Manual (required)
• Automated

Packaging changes reviewed?

• Yes
• No
• N/A

☑️ Self Check before Merge

⚠️ Please check all items below before review. ⚠️

• Doc is updated/provided or not needed
• Demo is updated/provided or not needed
• Merge the latest code from the main branch

Summary by Sourcery

This pull request adds documentation for the ZIndex parameter of the Drawer component and clarifies how to close the Drawer component from code.

Documentation:

• Added documentation for the ZIndex parameter of the Drawer component, explaining how to adjust the z-index to prevent it from being obscured by other popups.
• Updated the documentation to clarify how to close the Drawer component from code, detailing the usage of DialogCloseButton and the OnCloseAsync callback method.
• Updated the list of components that use z-index.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request adds documentation for the ZIndex parameter of the Drawer component, explaining how to use it to control the stacking order of drawers relative to other components.

No diagrams generated as the changes look simple and do not need a visual representation.

File-Level Changes

Change	Details	Files
Added documentation for the ZIndex parameter in the Drawer component.	Added a ZIndex attribute item to the GetAttributes method in Drawers.razor.cs. Added a section in DrawerServices.razor explaining how to set the ZIndex to adjust the drawer's stacking order. Updated the Layout.razor file to include Drawer in the list of components that use z-index.	src/BootstrapBlazor.Server/Components/Samples/DrawerServices.razor src/BootstrapBlazor.Server/Components/Samples/Drawers.razor.cs src/BootstrapBlazor.Server/Components/Pages/Layout.razor

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#5397	Add documentation for the ZIndex parameter of the Drawer component.	✅

Possibly linked issues

• doc(Drawer): add ZIndex parameter documentation #5397: The PR fulfills the issue by adding documentation for the ZIndex parameter in Drawer.
• doc(Drawer): add ZIndex parameter documentation #5397: The PR adds documentation for the ZIndex parameter, which was requested in the issue.
• doc(Drawer): add ZIndex parameter documentation #5397: The PR adds documentation for a ZIndex parameter, addressing the issue of UI elements being blocked by explicitly setting the z-index.

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[sourcery-ai]

Hey @ArgoZhang - I've reviewed your changes - here's some feedback:

Overall Comments:

• Please ensure the new documentation is clear and concise for users to understand the purpose and usage of the ZIndex parameter.
• Verify that the added documentation aligns with the actual behavior and implementation of the ZIndex parameter in the Drawer component.

Here's what I looked at during the review

• 🟢 General issues: all looks good
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Complexity: all looks good
• 🟢 Documentation: all looks good

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (2a050a1) to head (093dbb8).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #5398   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          645       645           
  Lines        29276     29276           
  Branches      4135      4135           
=========================================
  Hits         29276     29276           

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