refactor(LoadMore): use UseElementViewport false value

[ArgoZhang]

Link issues

fixes #6439

Summary By Copilot

Regression?

• Yes
• No

Risk

• High
• Medium
• Low

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

Default the IntersectionObserver to use its element viewport, explicitly opt LoadMore into the browser viewport, and update sample markup accordingly

Bug Fixes:

• Ensure LoadMore uses the browser viewport by setting UseElementViewport to false (fixes refactor(LoadMore): use UseElementViewport false value #6439)

Enhancements:

• Change IntersectionObserver.UseElementViewport default to true
• Adjust formatting in the IntersectionObservers.razor sample

[sourcery-ai]

Reviewer's Guide

This PR refactors the IntersectionObserver component by exposing the UseElementViewport parameter with a default of true, explicitly disables element viewport usage in the LoadMore component, and updates sample markup formatting for clarity.

Class diagram for IntersectionObserver parameter changes

classDiagram
    class IntersectionObserver {
        +bool UseElementViewport = true
        +string RootMargin
        +string Threshold
        +bool AutoUnobserveWhenIntersection
        +EventCallback OnIntersecting
    }

Loading

Class diagram for LoadMore usage of IntersectionObserver

classDiagram
    class LoadMore {
        +Task OnLoadMoreAsync
        +bool CanLoading
    }
    class IntersectionObserver {
        +bool UseElementViewport = true
    }
    LoadMore --|> IntersectionObserver : uses
    LoadMore : +UseElementViewport = false (in usage)

Loading

File-Level Changes

Change	Details	Files
Updated default value and documentation for UseElementViewport in IntersectionObserver	Set UseElementViewport default to true Revised XML comments to reflect new default behavior	src/BootstrapBlazor/Components/IntersectionObserver/IntersectionObserver.razor.cs
Explicitly disabled element viewport in LoadMore	Added UseElementViewport="false" to IntersectionObserver in LoadMore Ensured LoadMore uses browser viewport by default	src/BootstrapBlazor/Components/IntersectionObserver/LoadMore.razor
Cleaned up sample markup in IntersectionObservers.razor	Reformatted multi-line attributes for IntersectionObserver and LoadMore Converted LoadMore tag to inline closing form	src/BootstrapBlazor.Server/Components/Samples/IntersectionObservers.razor

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#6439	Refactor the LoadMore component to use UseElementViewport set to false in its IntersectionObserver.	✅
#6439	Add a test parameter (UseElementViewport) to the IntersectionObserver in LoadMore to allow for element-viewport testing.	✅
#6439	Refactor the LoadMore component to use UseElementViewport set to false in its IntersectionObserver.	✅
#6439	Add a test parameter (UseElementViewport) to the IntersectionObserver in LoadMore to allow for element-viewport testing.	✅

Possibly linked issues

• refactor(LoadMore): use UseElementViewport false value #6439: The PR refactors LoadMore to use UseElementViewport false value, directly addressing and fixing issue refactor(LoadMore): use UseElementViewport false value #6439.
• refactor(LoadMore): use UseElementViewport false value #6439: The PR fixes the missing viewport toggle in LoadMore's observer configuration, directly addressing the issue's functionality.

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[Copilot]

Pull Request Overview

This PR refactors the LoadMore component by adding a test parameter to improve the component's intersection observer configuration. The change specifically adds the UseElementViewport="false" parameter to the IntersectionObserver component.

Key Changes:

• Adds UseElementViewport="false" parameter to the IntersectionObserver component
• Reformats the component tag for better readability with multi-line attribute layout

[sourcery-ai]

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

• Rather than hard‐coding UseElementViewport="false" in the markup, consider exposing it as a [Parameter] on LoadMore so consumers can opt in or out.
• The PR description could use a brief explanation of why UseElementViewport is being added and what behaviors it affects for better context during review.

Prompt for AI Agents

Please address the comments from this code review:
## Overall Comments
- Rather than hard‐coding UseElementViewport="false" in the markup, consider exposing it as a [Parameter] on LoadMore so consumers can opt in or out.
- The PR description could use a brief explanation of why UseElementViewport is being added and what behaviors it affects for better context during review.

---

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 100.00%. Comparing base (5e3dab8) to head (7976950).
Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #6440   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          748       748           
  Lines        32259     32259           
  Branches      4560      4560           
=========================================
  Hits         32259     32259           

Flag	Coverage Δ
BB	100.00% <100.00%> (?)

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[ArgoZhang]

@sourcery-ai review

[sourcery-ai]

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

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