feat(frontend): Oisy logo redirects to Home Page (#2442)

# Motivation

We wrap the Oisy Logo into a button that redirects to the Home Page.

# Tests

Local replica worked as expected.

src/frontend/src/lib/components/hero/Header.svelte

@@ -9,6 +9,8 @@
 	import OisyWalletLogo from '$lib/components/icons/OisyWalletLogo.svelte';
 	import { authNotSignedIn, authSignedIn } from '$lib/derived/auth.derived';
 	import { modalAboutHow, modalAboutWhat } from '$lib/derived/modal.derived';
+	import { i18n } from '$lib/stores/i18n.store';
+	import { replaceOisyPlaceholders } from '$lib/utils/i18n.utils';
 
 	export let back = false;
 </script>
@@ -22,9 +24,13 @@
 	{#if back}
 		<Back />
 	{:else}
-		<div class="flex p-4 items-center">
+		<a
+			href="/"
+			class="flex p-4 items-center gap-0 pointer-events-auto no-underline"
+			aria-label={replaceOisyPlaceholders($i18n.core.alt.go_to_home)}
+		>
 			<OisyWalletLogo />
-		</div>
+		</a>
 	{/if}
 
 	<div

src/frontend/src/lib/i18n/en.json

@@ -20,7 +20,8 @@
 		},
 		"alt": {
 			"logo": "$name logo",
-			"background": "Background image of $oisy_name with gradient logo"
+			"background": "Background image of $oisy_name with gradient logo",
+			"go_to_home": "Go to the $oisy_name home page"
 		}
 	},
 	"navigation": {

src/frontend/src/lib/types/i18n.d.ts

@@ -19,7 +19,7 @@ interface I18nCore {
 		more: string;
 	};
 	info: { test_banner: string };
-	alt: { logo: string; background: string };
+	alt: { logo: string; background: string; go_to_home: string };
 }
 
 interface I18nNavigation {