✨ feat(auth): add resend verification email to registration screen

- Add prominent email verification success UI with resend button
- Show resend verification option when registration fails with "not verified" error
- Improve form spacing with space-y-4 for better visual consistency
- Add translations for resend verification in all languages (de, en, fr, it, es)
- Update all 13 app register pages to pass onResendVerification prop

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

apps/skilltree/apps/web/src/routes/(auth)/register/+page.svelte

@@ -24,6 +24,10 @@
 	async function handleSignUp(email: string, password: string) {
 		return authStore.signUp(email, password);
 	}
+
+	async function handleResendVerification(email: string) {
+		return authStore.resendVerificationEmail(email);
+	}
 </script>
 
 <svelte:head>
@@ -35,6 +39,7 @@
 	logo={SkillTreeLogo}
 	primaryColor="#10b981"
 	onSignUp={handleSignUp}
+	onResendVerification={handleResendVerification}
 	{goto}
 	successRedirect={redirectTo}
 	loginPath="/login"