Update header classes

Author: froelen

assets/css/global.css

@@ -124,7 +124,7 @@ header.collapsed {
   padding: var(--menu-icon-padding);
 }
 
-#nav-lang {
+.header-left {
   position: absolute;
   top: 16px;
   left: 16px;

en/index.html

@@ -63,7 +63,7 @@ <h1 hidden>froelen's website</h1>
         English | <a href="../fr/">français</a>
       </div>
 
-      <div id="nav-links" class="collapsed"> <!-- External links -->
+      <div id="nav-links" class="header-left collapsed"> <!-- External links -->
         <a href="../../github.html" target="_blank">
           <img id="github-icon" class="icon" src="../../assets/images/icons/services/github.svg"
             onerror="this.onerror=null; this.src='../../assets/images/icons/missing.svg'; this.classList.add('icon-missing')"

fr/index.html

@@ -16,12 +16,12 @@
   <link rel="canonical" href="https://froelen.is-a.dev/fr/">
 
   <!-- Open Graph meta tags for social media sharing -->
-  <meta property="og:title" content="">
-  <meta property="og:description" content="">
+  <meta property="og:title" content="MISSING TRANSLATION IN ./assets/ssg-templates/index.html: head.og:title">
+  <meta property="og:description" content="MISSING TRANSLATION IN ./assets/ssg-templates/index.html: head.og:description">
   <meta property="og:url" content="https://froelen.is-a.dev/fr/">
   <meta property="og:type" content="website">
   <meta property="og:image" content="https://froelen.is-a.dev/assets/images/og-image.jpg">
-  <meta property="og:locale" content="">
+  <meta property="og:locale" content="MISSING TRANSLATION IN ./assets/ssg-templates/index.html: head.og:locale">
 
   <!-- Alternate language versions for SEO and user experience -->
   <link rel="alternate" hreflang="fr" href="https://froelen.is-a.dev/fr/">
@@ -63,7 +63,7 @@ <h1 hidden>Site web de froelen</h1>
         français | <a href="../en/">English</a>
       </div>
 
-      <div id="nav-links" class="collapsed"> <!-- External links -->
+      <div id="nav-links" class="header-left collapsed"> <!-- External links -->
         <a href="../../github.html" target="_blank">
           <img id="github-icon" class="icon" src="../../assets/images/icons/services/github.svg"
             onerror="this.onerror=null; this.src='../../assets/images/icons/missing.svg'; this.classList.add('icon-missing')"