Fix XAML formatting: consolidate Button closing tag to single line

[Copilot]

Changes proposed in this pull request

• Consolidated Button closing tag in SettingsSettingsView.xaml from multi-line to single-line format
• Removed trailing whitespace before closing angle bracket

Related issue(s)

Related to #3302 (addressing review feedback from #3302)

Copilot generated summary

Provide a Copilot generated summary of the changes in this pull request.

Copilot summary

Fixed XAML formatting inconsistency where a Button element's closing tag was split across two lines with trailing whitespace. The closing /> is now on the same line as the other attributes, matching the codebase's established formatting pattern.

Before:

<Button Content="{x:Static localization:Strings.Reset}" Command="{Binding ResetSettingsCommand}"
        Style="{StaticResource DefaultButton}" HorizontalAlignment="Left" 
        />

After:

<Button Content="{x:Static localization:Strings.Reset}" Command="{Binding ResetSettingsCommand}"
        Style="{StaticResource DefaultButton}" HorizontalAlignment="Left" />

To-Do

• Update documentation to reflect this changes
• Update changelog to reflect this changes

Contributing

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• I have read and understood the contributing guidelines and the code of conduct.
• I have have added my name, username or email to the contributors list or don't want to.
• The code or resource is compatible with the GNU General Public License v3.0.

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