Rename chapter option to show chapter

public/_locales/en/messages.json

@@ -746,6 +746,9 @@
     "showOverlay_full": {
         "message": "Show Label"
     },
+    "showOverlay_chapter": {
+        "message": "Show Chapters"
+    },
     "autoSkipOnMusicVideos": {
         "message": "Auto skip all segments when there is a non-music segment"
     },

src/utils/categoryUtils.ts

@@ -41,6 +41,8 @@ export function getCategorySuffix(category: Category): string {
         return "_POI";
     } else if (category === "exclusive_access") {
         return "_full";
+    } else if (category === "chapter") {
+        return "_chapter";
     } else {
         return "";
     }