feat(SelectTree): support async Items as data source

[tiansfather]

support async Items as data source

Description

fixes #{4822} (in this specific format)

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

Bug Fixes:

• Fix the issue where the initial value was not being selected in the SelectTree component by ensuring the component sets the default value when a value is assigned.

[sourcery-ai]

Reviewer's Guide by Sourcery

This PR fixes an issue with initial value selection in the SelectTree component. The implementation adds a new condition to handle cases where a Value is already assigned to the component, ensuring proper initial selection behavior.

Class diagram for SelectTree component changes

classDiagram
    class SelectTree {
        +OnParametersSetAsync() async
    }
    note for SelectTree "Added condition to handle initial value selection when Value is assigned."

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File-Level Changes

Change	Details	Files
Added logic to handle initial value selection when the component has a pre-assigned Value	Added an else clause to handle the case when Value is already set Implemented value-based selection using Equals comparison with the component's Value property	src/BootstrapBlazor/Components/Select/SelectTree.razor.cs

Possibly linked issues

• bug(SelectTree): 设置初始值后无法选中对应项 #4822: The PR fixes the initial value selection issue in SelectTree, directly addressing the issue.

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[bb-auto]

Thanks for your PR, @tiansfather. Someone from the team will get assigned to your PR shortly and we'll get it reviewed.

[sourcery-ai]

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

Overall Comments:

• Please complete the PR template - mark whether this is a regression, justify the risk level, and check off the self-check items to confirm all requirements have been met.

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 (10ed4b3) to head (6a73c12).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #4827   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          621       621           
  Lines        27405     27408    +3     
  Branches      3930      3930           
=========================================
+ Hits         27405     27408    +3     

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