feat(EditForm): update footer style

[ArgoZhang]

Link issues

fixes #6578

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

Update EditorForm and modal form-footer styles, refactor root class handling and fix footer margin/padding

Bug Fixes:

• Fix EditorForm footer style issue (feat(EditForm): update footer style #6578)

Enhancements:

• Compute EditorForm root CSS class via ClassString to merge AdditionalAttributes
• Remove default margin on EditorForm footer and relocate Buttons within markup
• Adjust modal-dialog-table form-footer padding to 0.5rem 1rem

[sourcery-ai]

Reviewer's guide (collapsed on small PRs)

Reviewer's Guide

This PR refactors the EditorForm component by centralizing CSS class management via a ClassString builder, relocating the footer markup inside the cascading context, cleaning up outdated SCSS rules, and adjusts the default padding for table form-footers.

File-Level Changes

Change	Details	Files
Centralize root CSS class with ClassString builder	Add ClassString property to compute base and additional classes Replace hardcoded 'bb-editor' class with dynamic ClassString in razor	src/BootstrapBlazor/Components/EditorForm/EditorForm.razor src/BootstrapBlazor/Components/EditorForm/EditorForm.razor.cs
Relocate footer block inside cascading value	Move Buttons conditional block inside the CascadingValue container Adjust indentation to reflect new block positioning	src/BootstrapBlazor/Components/EditorForm/EditorForm.razor
Clean up EditorForm SCSS by removing footer margin rule	Remove .bb-editor-footer margin-block-start styling Simplify .bb-editor selector formatting	src/BootstrapBlazor/Components/EditorForm/EditorForm.razor.scss
Adjust table form-footer padding	Change default padding from 1rem to 0.5rem 1rem for form-footer in table context	src/BootstrapBlazor/Components/Table/Table.razor.scss

Assessment against linked issues

Issue	Objective	Addressed	Explanation
#6578	Update the footer style in the EditForm component.	✅

Possibly linked issues

• feat(EditForm): update footer style #6578: The PR updates footer padding and removes margin, directly addressing the footer style update in the issue.

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[sourcery-ai]

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

• Remove the hidden BOM character before the .bb-editor selector in EditorForm.razor.scss to prevent CSS parsing issues.
• Replace the hard-coded .form-footer padding in Table.razor.scss with the project’s SCSS spacing variables for consistency.
• Verify that moving the @Buttons block inside the CascadingValue wrapper doesn’t change its cascading context or introduce side-effect styling changes.

Prompt for AI Agents

Please address the comments from this code review:
## Overall Comments
- Remove the hidden BOM character before the `.bb-editor` selector in EditorForm.razor.scss to prevent CSS parsing issues.
- Replace the hard-coded `.form-footer` padding in Table.razor.scss with the project’s SCSS spacing variables for consistency.
- Verify that moving the `@Buttons` block inside the `CascadingValue` wrapper doesn’t change its cascading context or introduce side-effect styling changes.

## Individual Comments

### Comment 1
<location> `src/BootstrapBlazor/Components/EditorForm/EditorForm.razor.cs:17` </location>
<code_context>
 [CascadingTypeParameter(nameof(TModel))]
 public partial class EditorForm<TModel> : IShowLabel
 {
+    private string? ClassString => CssBuilder.Default("bb-editor")
+        .AddClassFromAttributes(AdditionalAttributes)
+        .Build();
</code_context>

<issue_to_address>
ClassString property could be made non-nullable for clarity.

CssBuilder.Default always returns a string, so ClassString can be non-nullable to accurately represent its type.
</issue_to_address>

<suggested_fix>
<<<<<<< SEARCH
    private string? ClassString => CssBuilder.Default("bb-editor")
        .AddClassFromAttributes(AdditionalAttributes)
        .Build();
=======
    private string ClassString => CssBuilder.Default("bb-editor")
        .AddClassFromAttributes(AdditionalAttributes)
        .Build();
>>>>>>> REPLACE

</suggested_fix>

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 100.00%. Comparing base (53b67c3) to head (46777cf).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff            @@
##              main     #6579   +/-   ##
=========================================
  Coverage   100.00%   100.00%           
=========================================
  Files          721       721           
  Lines        31556     31559    +3     
  Branches      4450      4450           
=========================================
+ Hits         31556     31559    +3     

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

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