Improved scaling of navbar for page-view and redact (#3978)

# Description of Changes

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## Checklist

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- [ ] I have read the [Contribution
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---------

Co-authored-by: Connor Yoh <connor@stirlingpdf.com>

app/core/src/main/resources/templates/fragments/common.html

@@ -115,7 +115,7 @@
       
       // Set CSS custom property for mobile navbar scaling (for sidebar positioning)
       // Use the ACTUAL scaled height, not a fixed assumption
-      const baseHeight = 60;
+      const baseHeight = 64;
       const actualScaledHeight = baseHeight * navScale;
       document.documentElement.style.setProperty('--navbar-height', `${actualScaledHeight}px`);