Update HelpWindow title text for consistency

Replaced the ampersand ('&') with the word "and" in the title text
within the HelpWindow.xaml file. The new title is "Ini Translator -
Help and Documentation". This change improves readability and
maintains consistency in the documentation style.

IniTranslator/Windows/HelpWindow.xaml

@@ -12,7 +12,7 @@
         <FlowDocument>
             <!-- Title -->
             <Paragraph FontFamily="Segoe UI" FontSize="18" FontWeight="Bold" Margin="0,0,0,10">
-                Ini Translator - Help & Documentation
+                Ini Translator - Help and Documentation
             </Paragraph>
 
             <!-- General Usage -->