feat(ContextMenuDivider): add ContextMenuDivider component

[ArgoZhang]

add ContextMenuDivider component

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 #5378

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

Add the ContextMenuDivider component. This component visually separates groups of items within a context menu, enhancing usability.

New Features:

• Introduce ContextMenuDivider component to allow adding a divider between context menu items.

Tests:

• Add unit test for the ContextMenuDivider component.

[sourcery-ai]

Reviewer's Guide by Sourcery

This pull request introduces a new ContextMenuDivider component to the BootstrapBlazor library. This component allows developers to add visual dividers within the ContextMenu component, improving the structure and readability of context menus.

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

File-Level Changes

Change	Details	Files
Introduces the ContextMenuDivider component, which inherits from Divider and implements IContextMenuItem. It renders a divider within a ContextMenu.	Created a new ContextMenuDivider component. The component inherits from the Divider component. The component implements the IContextMenuItem interface. The component registers itself with the parent ContextMenu on initialization. The component removes itself from the parent ContextMenu when disposed.	src/BootstrapBlazor/Components/ContextMenu/ContextMenuDivider.cs
Adds an interface IContextMenuItem to represent items that can be added to a ContextMenu.	Created a new interface IContextMenuItem. The interface is an empty interface used as a marker for context menu items.	src/BootstrapBlazor/Components/ContextMenu/IContextMenuItem.cs
Updates the ContextMenu component to support ContextMenuDivider components.	Modified the ContextMenu component to accept IContextMenuItem instead of ContextMenuItem. Modified the ContextMenu component to render ContextMenuDivider components. Modified the AddItem and RemoveItem methods to accept IContextMenuItem.	src/BootstrapBlazor/Components/ContextMenu/ContextMenu.razor src/BootstrapBlazor/Components/ContextMenu/ContextMenu.razor.cs
Updates the ContextMenuItem to implement the IContextMenuItem interface.	Modified the ContextMenuItem component to implement IContextMenuItem.	src/BootstrapBlazor/Components/ContextMenu/ContextMenuItem.cs
Adds a unit test for the ContextMenuDivider component.	Added a new unit test to verify the rendering of the ContextMenuDivider component.	test/UnitTest/Components/ContextMenuTest.cs

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#5378	Add a ContextMenuDivider component to the BootstrapBlazor component library.	✅

Possibly linked issues

• feat(ContextMenuDivider): add ContextMenuDivider component #5378: The PR implements the ContextMenuDivider component requested in the issue.

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (19f6dfe) to head (359c0c6).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #5379   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          644       645    +1     
  Lines        29220     29246   +26     
  Branches      4125      4129    +4     
=========================================
+ Hits         29220     29246   +26     

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