docs: change branding Pawkey (#1)

- Change string instances from Sharkey to Pawkey
- Change logos and art to Pawkey
- Change repository URL where possible to our git repo
- Puppy > Shonks
- Change repo in compose_example.yml

Co-Authored-By: Bluey Heeler <bluey@pawkey.dev>

packages/frontend/src/ui/_common_/common.ts

@@ -167,8 +167,8 @@ export function openInstanceMenu(ev: MouseEvent) {
 	menuItems.push({
 		type: 'link',
 		text: i18n.ts.aboutMisskey,
-		icon: 'sk-icons sk-shark sk-icons-lg',
-		to: '/about-sharkey',
+		icon: 'ph-paw-print ph-bold ph-lg',
+		to: '/about-pawkey',
 	});
 
 	os.popupMenu(menuItems, ev.currentTarget ?? ev.target, {