fix: shrink favicon.ico to essential 16/32/48 sizes#12
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Drops the 64/128/256 sub-images that browsers never request from the legacy .ico fallback. Modern browsers use icon.svg directly for any DPI. 118K -> 15K (87% smaller).
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Summary
favicon.icofromicon.svg(which is the canonical logo source) at only the three sizes browsers actually request: 16×16, 32×32, 48×48.<link rel="icon" type="image/svg+xml">; the.icoonly exists as a legacy fallback for browsers that don't support SVG icons.Test plan
bugdrop.devin a clean Chrome profile, confirm tab favicon renders correctly.icofallback path also rendersnext buildsucceeds with no warnings about the favicon