Add basic author form

front/src/locales/en.json

@@ -43,6 +43,9 @@
     "startread": "Start reading",
     "wantread": "I want to read it"
   },
+  "authorform": {
+    "error": "Erreur when loading author: {error}"
+  },
   "bookform": {
     "error": "Error when loading book: {error}",
     "read": "Read",

front/src/locales/fr.json

@@ -43,6 +43,9 @@
     "startread": "Commencer la lecture",
     "wantread": "Je veux le lire"
   },
+  "authorform": {
+    "error": "Erreur pendant le chargement de l'auteur: {error}"
+  },
   "bookform": {
     "error": "Erreur pendant le chargement du livre: {error}",
     "read": "Lu",