fix(i18n): add missing translation (#504)

locales/en-US.json

@@ -31,12 +31,14 @@
     "unmute": "Unmute"
   },
   "action": {
+    "apply": "Apply",
     "bookmark": "Bookmark",
     "bookmarked": "Bookmarked",
     "boost": "Boost",
     "boosted": "Boosted",
     "close": "Close",
     "compose": "Compose",
+    "edit": "Edit",
     "enter_app": "Enter App",
     "favourite": "Favourite",
     "favourited": "Favourited",
@@ -53,6 +55,10 @@
   "app_desc_short": "A nimble Mastodon web client",
   "app_logo": "Elk Logo",
   "app_name": "Elk",
+  "attachment": {
+    "edit_title": "Description",
+    "remove_label": "Remove attachment"
+  },
   "command": {
     "activate": "Activate",
     "complete": "Complete",

locales/es-ES.json

@@ -31,12 +31,14 @@
     "unmute": "Dejar de silenciar"
   },
   "action": {
+    "apply": "Aplicar",
     "bookmark": "Añadir marcador",
     "bookmarked": "Guardado como marcador",
     "boost": "Retootear",
     "boosted": "Retooteado",
     "close": "Cerrar",
     "compose": "Redactar",
+    "edit": "Editar",
     "enter_app": "Entrar",
     "favourite": "Favorito",
     "favourited": "Marcado como favorito",
@@ -50,9 +52,13 @@
     "switch_account": "Cambiar cuenta",
     "vote": "Votar"
   },
-  "app_desc_short": "Un cliente Mastodon hecho con 🧡",
+  "app_desc_short": "Un ágil cliente web de Mastodon",
   "app_logo": "Logotipo de Elk",
   "app_name": "Elk",
+  "attachment": {
+    "edit_title": "Descripción",
+    "remove_label": "Eliminar archivo adjunto"
+  },
   "command": {
     "activate": "Activar",
     "complete": "Completar",