doc(MindMap): add how to use section

[ArgoZhang]

add how to use section

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 #5017

Regression?

• Yes
• No

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

[是否影响老版本]

Risk

• High
• Medium
• Low

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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 usage instructions to the MindMap component documentation.

Enhancements:

• Improved the export functionality of the MindMap component by removing redundant export methods and clarifying the messages displayed after export actions.

Documentation:

• Added a how-to-use section to the MindMap documentation, including instructions on drawing and importing mind maps, and how to use the Data parameter to render the mind map.

[sourcery-ai]

Reviewer's Guide by Sourcery

This PR adds a "How to use" section to the MindMap documentation and refactors some sample code.

Class diagram for MindMap component changes

classDiagram
    class MindMaps {
        -MindMap MindMap
        +ExportImage() Task
        +ExportJson() Task
        +GetFullData() Task
        +GetData() Task
        +SetData() Task
        +Scale(float step) Task
        +SetSample1() Task
        +SetSample2() Task
    }
    note for MindMaps "Removed _data field and ExportPng method
Renamed Sample1/2 to SetSample1/2"

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File-Level Changes

Change	Details	Files
Added a how-to-use section to the MindMap documentation.	Included steps for drawing and importing mind maps. Added a link to an online mind map tool. Provided instructions on how to use the Data parameter to render the mind map in the component.	src/BootstrapBlazor.Server/Components/Samples/MindMaps.razor
Refactored sample code for the MindMap component.	Renamed Sample1 and Sample2 methods to SetSample1 and SetSample2 for clarity. Removed unused _data variable. Simplified the GetData method. Updated button click handlers to use the new method names. Removed redundant ExportPng method and updated messages in ExportImage and ExportJson methods.	src/BootstrapBlazor.Server/Components/Samples/MindMaps.razor src/BootstrapBlazor.Server/Components/Samples/MindMaps.razor.cs
Minor updates to button styling in Dialogs component examples.	Added missing closing tags to Button components for consistent styling.	src/BootstrapBlazor.Server/Components/Samples/Dialogs.razor
Updated localization files and project file.	Updated localization files to reflect changes in the MindMap documentation and sample code. Modified project file to include updated dependencies or resources, if any.	src/BootstrapBlazor.Server/Locales/en-US.json src/BootstrapBlazor.Server/Locales/zh-CN.json src/BootstrapBlazor.Server/BootstrapBlazor.Server.csproj

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#5017	Add sample code for MindMap component	✅
#5017	Document how to use the MindMap component	✅

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[sourcery-ai]

Hey @ArgoZhang - I've reviewed your changes and they look great!

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 (a7617a2) to head (05d830b).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #5018   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          631       631           
  Lines        27946     27946           
  Branches      4003      4003           
=========================================
  Hits         27946     27946           

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