Finished addressing review.

src/path-suggest.ts

@@ -1,4 +1,4 @@
-import { AbstractInputSuggest, App } from "obsidian";
+import { AbstractInputSuggest, App, TFolder } from "obsidian";
 
 export class PathSuggest extends AbstractInputSuggest<string> {
     private textInputEl: HTMLInputElement | HTMLDivElement;
@@ -9,11 +9,12 @@ export class PathSuggest extends AbstractInputSuggest<string> {
     }
 
     async getSuggestions(query: string): Promise<string[]> {
-        let searchPath = '';
-        if (await this.app.vault.adapter.exists(query)) searchPath = query;
-        let folders = (await this.app.vault.adapter.list(searchPath)).folders;
-        folders = folders.filter(folder => !folder.startsWith('.') && folder.startsWith(query));
-        return folders;
+        query ||= '/';
+        const folder = this.app.vault.getFolderByPath(query);
+        if (!folder) return [];
+        return folder.children
+            .filter(c => c instanceof TFolder)
+            .map(f => f.path);
     }
 
     renderSuggestion(item: string, el: HTMLElement): void {