Add missing words to translate

src/playlist.js

@@ -481,5 +481,5 @@ getId("advancedToggle").textContent = i18n.__("More options");
 getId("rangeTxt").textContent = i18n.__("Playlist range");
 getId("playlistIndex").placeholder = i18n.__("Start");
 getId("playlistEnd").placeholder = i18n.__("End");
-getId("downloadThumbnails").placeholder = i18n.__("Download thumbnails");
-getId("saveLinks").placeholder = i18n.__("Save video links");
+getId("downloadThumbnails").textContent = i18n.__("Download thumbnails");
+getId("saveLinks").textContent = i18n.__("Save video links to a file");

translations/en.json

@@ -80,5 +80,8 @@
 	"Reset to default":"Reset to default",
 	"Playlist range":"Playlist range",
 	"Thumbnail": "Thumbnail",
-	"Link added":"Link added"
+	"Link added":"Link added",
+	"Download thumbnails":"Download thumbnails",
+	"Save video links to a file": "Save video links to a file"
+
 }