Add icons for various browsers (#3645)

Co-authored-by: Chris Swithinbank <swithinbank@gmail.com>

Author: mschoeffmann

.changeset/cool-eels-exercise.md

@@ -0,0 +1,5 @@
+---
+'@astrojs/starlight': patch
+---
+
+Adds icons for Chrome, Edge, Firefox, and Safari

packages/starlight/components/Icons.ts

@@ -193,6 +193,14 @@ export const BuiltInIcons = {
 		'<path d="M12 20a8 8 0 0 1-8-8 8 8 0 0 1 8-8 8 8 0 0 1 8 8 8 8 0 0 1-8 8m0-18A10 10 0 0 0 2 12a10 10 0 0 0 10 10 10 10 0 0 0 10-10A10 10 0 0 0 12 2"/>',
 	substack:
 		'<path d="M22.5 8.2h-21V5.4h21v2.8zm-21 2.6V24L12 18.1 22.5 24V10.8h-21zM22.5 0h-21v2.8h21V0z"/>',
+	chrome:
+		'<path d="M9.83 21.76A10 10 0 0 1 3.33 7l4.3 7.42a5 5 0 0 0 4.97 2.55zM12 22l4.29-7.42A5 5 0 0 0 17 12a5 5 0 0 0-1-3h5.54a10 10 0 0 1 .46 3 10 10 0 0 1-10 10m2.57-8.45a3 3 0 0 1-5.17-.05l-.03-.05a3 3 0 1 1 5.23.05zM4.63 5.24A10 10 0 0 1 12 2a10 10 0 0 1 8.66 5H12a5 5 0 0 0-4.6 3.03z"/>',
+	edge:
+		'<path d="M10.86 15.37a5 5 0 0 1-1.31-2.72q-.46.69-.73 1.5a5.97 5.97 0 0 0 3.4 7.18c2.34.78 4.97-.61 6.7-2.13.26-.35 2.31-2.16 1.29-2.36-3.02 1.55-7.02 1.11-9.35-1.47m.6-5.81c1.04-.01.04-.43-.39-.75a7 7 0 0 0-3.44-.85C3.78 8 1 10.41 2.3 14.4c.94 3.88 4.31 7 8.29 7.5a7.3 7.3 0 0 1-3.29-6.12c.08-2.53 1.64-5.5 4.16-6.22M2.78 8.24C5.82 6 10.66 6.18 13.28 9c1.02 1.11 1.72 3 .79 4.37-1.74 1.88 3.08 2.13 4.11 1.85 3.74-.72 4.73-5.07 2.95-8.07-1.7-3.4-5.47-5.18-9.17-5.15a9.8 9.8 0 0 0-9.18 6.24"/>',
+	firefox:
+		'<path d="M6.85 6.74q.02 0 0 0M21.28 8.6a5.6 5.6 0 0 0-2.01-2.54c.56 1.11.89 2.22 1.02 3.04v.02c-1.13-2.82-3.05-3.96-4.62-6.44q-.13-.18-.24-.38l-.11-.21a2 2 0 0 1-.15-.4l-.02-.02h-.03a7.3 7.3 0 0 0-3.38 5.04q-1.05.06-1.99.51c-.12.05-.17.19-.13.31.05.14.21.21.34.15a5 5 0 0 1 1.74-.45h.05l.25-.01q.74-.01 1.44.2l.06.02.25.06.16.08.14.06.2.09.09.05.2.11.12.07a5 5 0 0 1 1.75 1.81A3.5 3.5 0 0 0 14 9.19c3.6 1.81 2.63 8-2.36 7.76a4 4 0 0 1-1.76-.45 4.3 4.3 0 0 1-2.38-3.27s.5-1.73 3.33-1.73c.31 0 1.17-.86 1.2-1.1 0-.09-1.74-.78-2.42-1.45l-.69-.66-.26-.19a4.6 4.6 0 0 1-.03-2.45A8 8 0 0 0 6.22 7.5c-.4-.5-.37-2.15-.35-2.5l-.33.18q-.53.38-.98.82-.52.55-.94 1.14a9 9 0 0 0-1.34 3.04c0 .01-.1.41-.17.92l-.03.23-.08.58v.41A10.02 10.02 0 0 0 21.88 14l.05-.37c.2-1.72-.02-3.52-.65-5.03"/>',
+	safari:
+		'<path d="M5.4 13.2H3.6V12h1.8zm1.944-5.868-.852.852L5.22 6.912l.852-.852zM12 5.4h-1.2V3.6H12zm6.6 5.4h1.8V12h-1.8zm-1.944 5.868.852-.852 1.272 1.272-.852.852zM12 18.6h1.2v1.8H12zm.924-5.676-1.848-1.848L9.24 14.76zM12 21.6a9.6 9.6 0 0 0 9.6-9.6c0-2.508-.96-4.8-2.532-6.492l-4.524 9.036-9.036 4.524A9.6 9.6 0 0 0 12 21.6m0-19.2A9.6 9.6 0 0 0 2.4 12c0 2.508.96 4.8 2.532 6.492l4.524-9.036 9.036-4.524A9.6 9.6 0 0 0 12 2.4M12 0c6.627 0 12 5.373 12 12s-5.373 12-12 12S0 18.627 0 12 5.373 0 12 0"/>',
 };
 
 export const Icons = {