fix: remove viewport clipping to prevent stroke cutoff

[hongminpark]

When SVG elements have strokes that extend beyond their viewport bounds, the .clipped() modifier would cut them off. This change allows strokes to render fully outside their nominal bounds.

Problem

When using SVG shapes with strokes, especially with larger stroke widths, the strokes can get clipped at the viewport boundaries. This is because the .clipped() modifier in SVGViewportView forces the content to stay within its frame.

Solution

Remove the .clipped() modifier from SVGViewportView to allow strokes to render beyond the viewport bounds. This maintains the same viewport sizing and transformation behavior while allowing strokes to be fully visible.

Testing

Tested with SVG shapes using various stroke widths and confirmed that:

• Strokes now render completely without being cut off at the edges
• The basic viewport sizing and transformation behavior remains unchanged
• SVG content still respects the frame size for layout purposes