feat: astro template for front and fix login(#13)

Reviewed-on: #13
Co-authored-by: Clement <c.boesmier@aptatio.com>
Co-committed-by: Clement <c.boesmier@aptatio.com>

front/src/components/blog/Headline.astro

@@ -0,0 +1,12 @@
+---
+const { title = await Astro.slots.render('default'), subtitle = await Astro.slots.render('subtitle') } = Astro.props;
+---
+
+<header class="mb-8 md:mb-16 text-center max-w-3xl mx-auto">
+  <h1 class="text-4xl md:text-5xl font-bold leading-tighter tracking-tighter font-heading" set:html={title} />
+  {
+    subtitle && (
+      <div class="mt-2 md:mt-3 mx-auto text-xl text-gray-500 dark:text-slate-400 font-medium" set:html={subtitle} />
+    )
+  }
+</header>