chore: 🤖 align the same structure with option page

Author: JYC333

apps/client/src/widgets/type_widgets/content_widget.ts

@@ -45,7 +45,7 @@ import { t } from "../../services/i18n.js";
 import LanguageOptions from "./options/i18n/language.js";
 import type BasicWidget from "../basic_widget.js";
 import CodeTheme from "./options/code_notes/code_theme.js";
-import RelatedSettings from "./options/related_settings.js";
+import RelatedSettings from "./options/appearance/related_settings.js";
 
 const TPL = /*html*/`<div class="note-detail-content-widget note-detail-printable">
     <style>

apps/client/src/widgets/type_widgets/options/related_settings.ts renamed to apps/client/src/widgets/type_widgets/options/appearance/related_settings.ts

@@ -1,6 +1,5 @@
-import type FNote from "../../../entities/fnote";
-import type { OptionPages } from "../content_widget";
-import OptionsWidget from "./options_widget";
+import type { OptionPages } from "../../content_widget";
+import OptionsWidget from "../options_widget";
 
 const TPL = `\
 <div class="options-section">