SfTabView HeaderItemSpacing property

[aleksandervalle]

Root Cause of the Issue

We need to customize the spacing between header items in the TabView. This spacing is currently hardcoded to 36 (see https://github.com/syncfusion/maui-toolkit/blob/main/maui/src/TabView/Control/SfTabBar.cs#L33).

Description of Change

Introduces a new HeaderItemSpacing property on SfTabView, piped down to SfTabBar.

Preserves current value 36 as default value.

Screenshots

[Copilot]

Pull Request Overview

Introduces a new HeaderItemSpacing property to SfTabView that allows customization of spacing between header items in the tab bar. The property replaces a previously hardcoded value of 36 pixels while maintaining backward compatibility by using 36 as the default value.

Key Changes:

• Added HeaderItemSpacing property to SfTabView and SfTabBar with a default value of 36
• Replaced hardcoded _defaultTextPadding constant with the configurable HeaderItemSpacing property throughout tab item width calculations
• Implemented property change handlers to propagate spacing updates from SfTabView to SfTabBar

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 2 comments.

File	Description
maui/src/TabView/Control/SfTabView.cs	Adds public HeaderItemSpacing property with bindable property definition, documentation, and propagation logic to the tab bar
maui/src/TabView/Control/SfTabBar.cs	Adds internal HeaderItemSpacing property and updates all width calculation methods to use the property instead of the hardcoded constant

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[aleksandervalle]

If this looks good, I can make a PR for the syncfusion-content/maui-toolkit-docs too (to document this new property).

[Copilot]

Pull Request Overview

Copilot reviewed 2 out of 2 changed files in this pull request and generated no new comments.

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