Make find as a clean architecture

src/content/repositories/FindRepository.ts

@@ -0,0 +1,19 @@
+export default interface FindRepository {
+  getLastKeyword(): string | null;
+
+  setLastKeyword(keyword: string): void;
+
+  // eslint-disable-next-line semi
+}
+
+let current: string | null = null;
+
+export class FindRepositoryImpl implements FindRepository {
+  getLastKeyword(): string | null {
+    return current;
+  }
+
+  setLastKeyword(keyword: string): void {
+    current = keyword;
+  }
+}

src/content/repositories/SettingRepository.ts

@@ -18,5 +18,4 @@ export class SettingRepositoryImpl implements SettingRepository {
   get(): Settings {
     return current;
   }
-
 }