doc(Layout): relayout z-index value

[ArgoZhang]

Link issues

[请在下方 # 后面填写相关 Issue 编号，如 #42]
fixes #5524

Summary By Copilot

This pull request includes several changes to the CSS files for various components in the BootstrapBlazor.Server project. The main focus of these changes is to adjust the z-index values and improve the layout positioning.

Adjustments to z-index values:

• src/BootstrapBlazor.Server/Components/Components/Header.razor.css: Changed the z-index of .navbar-header from 1050 to 15 and removed the .modal-open .navbar-header rule.
• src/BootstrapBlazor.Server/Components/Layout/BaseLayout.razor.css: Added position: relative and z-index: 10 to the main element.
• src/BootstrapBlazor.Server/Components/Layout/MainLayout.razor.css: Added position: relative to the new .section class and adjusted the z-index of .main to 5. Also, added z-index: 10 to .dial-button. [1] [2]

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

Adjusts z-index values and improves layout positioning for various components. This change ensures proper layering and visibility of elements, especially in relation to the header and modal components.

Enhancements:

• Adjusts the z-index of the .navbar-header and adds position: relative and z-index to the main element in BaseLayout.razor.css.
• Adds position: relative to the .section class and adjusts the z-index of .main and .dial-button in MainLayout.razor.css.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request adjusts the z-index values and layout positioning of several components. The changes involve modifying the z-index of the navbar header, adding positioning and z-index to the main layout elements, and adjusting the z-index of specific elements within the main layout.

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

File-Level Changes

Change	Details	Files
Adjusted the z-index and positioning of the main layout elements.	Added position: relative to the .section class. Adjusted the z-index of .main to 5 and added position: relative. Added z-index: 10 to .dial-button.	src/BootstrapBlazor.Server/Components/Layout/MainLayout.razor.css
Modified the z-index of the navbar header and removed a rule related to modal windows.	Changed the z-index of .navbar-header from 1050 to 15. Removed the .modal-open .navbar-header rule.	src/BootstrapBlazor.Server/Components/Components/Header.razor.css
Added positioning and z-index to the main element in the base layout.	Added position: relative to the main element. Added z-index: 10 to the main element.	src/BootstrapBlazor.Server/Components/Layout/BaseLayout.razor.css

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#5524	Add sample code for the Layout component.	❌	The PR adjusts z-index values in CSS files related to layout components but does not add sample code as requested in the issue.

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[sourcery-ai]

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

Overall Comments:

• It would be helpful to understand the specific stacking context issues these z-index changes are addressing.
• Consider using CSS variables to manage z-index values for consistency.

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 (858755a) to head (85375aa).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #5525   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          649       649           
  Lines        29583     29583           
  Branches      4167      4167           
=========================================
  Hits         29583     29583           

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