Fetch image for meta tags with absolute urls to avoid cors issues

src/client/index.html

@@ -10,14 +10,14 @@
   <meta property="og:url" content="https://absd.pasteur.cloud/">
   <meta property="og:title" content="ABSD - AntiBody Sequence Database">
   <meta property="og:description" content="ABSD is a database gathering antibody sequences, sourced from various repositories like the PDB, GeneBank, IMGT, UniProt, INN, and more.">
-  <meta property="og:image" content="/logo-meta-og.jpg">
+  <meta property="og:image" content="https://absd.pasteur.cloud/logo-meta-og.jpg">
   <meta property="og:image:width" content="1200">
   <meta property="og:image:height" content="628">
   <meta property="twitter:card" content="summary_large_image">
   <meta property="twitter:url" content="https://absd.pasteur.cloud/">
   <meta property="twitter:title" content="ABSD - AntiBody Sequence Database">
   <meta property="twitter:description" content="ABSD is a database gathering antibody sequences, sourced from various repositories like the PDB, GeneBank, IMGT, UniProt, INN, and more.">
-  <meta property="twitter:image" content="/logo-meta-og.jpg">
+  <meta property="twitter:image" content="https://absd.pasteur.cloud/logo-meta-og.jpg">
   <meta property="twitter:image:width" content="1200">
   <meta property="twitter:image:height" content="628">
   <meta name="viewport" content="width=device-width, initial-scale=1">