Only automatically clear cache in dev mode

src/main.ts

@@ -94,8 +94,12 @@ export default class OmnisearchPlugin extends Plugin {
   async onunload(): Promise<void> {
     // @ts-ignore
     delete globalThis['omnisearch']
+
+    // Clear cache when disabling Omnisearch
+    if (process.env.NODE_ENV === 'production') {
       await database.clearCache()
     }
+  }
 
   addRibbonButton(): void {
     this.ribbonButton = this.addRibbonIcon('search', 'Omnisearch', _evt => {