fix(Select): use ScrollIntoView function

[ArgoZhang]

use ScrollIntoView function

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 #5042

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

Use the browser's built-in scrollIntoView API for scrolling active items into view within the select component.

Bug Fixes:

• Fix scrolling issue within the select dropdown.

Enhancements:

• Improve scrolling behavior in the select component.

[sourcery-ai]

Reviewer's Guide by Sourcery

This PR fixes a bug in the Select component where the active item was not scrolled into view when the dropdown was opened. The fix replaces custom scroll logic with the standard scrollIntoView function.

Sequence diagram for Select component dropdown interaction

sequenceDiagram
    participant User
    participant Select
    participant Dropdown
    participant ScrollHandler

    User->>Select: Opens dropdown
    Select->>Dropdown: shown.bs.dropdown/shown.bs.popover
    Dropdown->>Select: Find active item
    Select->>ScrollHandler: scrollIntoView(active item)
    Note over ScrollHandler: Uses native scrollIntoView
    Note over ScrollHandler: with 'center' alignment

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State diagram for Select component scroll behavior

stateDiagram-v2
    [*] --> Closed
    Closed --> Open: User clicks
    Open --> ScrollRequired: Active item exists
    Open --> Idle: No active item
    ScrollRequired --> Scrolling: Call scrollIntoView
    Scrolling --> Idle: Scroll complete
    Idle --> Closed: User closes
    Scrolling --> Closed: User closes

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File-Level Changes

Change	Details	Files
Replaced custom scroll logic with the standard scrollIntoView function.	Removed the scrollToActive function. Removed the getTop function. Added the scrollIntoView function. Updated the shown and keydown event handlers to use scrollIntoView. Removed unnecessary calculations and logic related to scrolling. Updated event handling for dropdown and popover display to use scrollIntoView.	src/BootstrapBlazor/Components/Select/Select.razor.js

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#5042	When IsPopover is true, the dropdown should scroll to the current selected item's position	✅
#5042	Correctly calculate scrollbar position when there are many grouped items and the selected item is towards the end	✅

Possibly linked issues

• bug(Select): 下拉选择框滚动条位置不正确 #5042: The PR fixes the issue mentioned by updating the Javascript code to use the ScrollIntoView function, addressing the search box behavior within the Select component.
• bug(Select): 下拉选择框滚动条位置不正确 #5042: The PR fixes the scrollbar position issue in the dropdown discussed in the issue by implementing the ScrollIntoView function.

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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 (88fba62) to head (11fef73).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #5047   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          631       631           
  Lines        27964     27964           
  Branches      4008      4008           
=========================================
  Hits         27964     27964           

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