ENG-2084 Reset applying flag only on the failure path

The success path calls onClose() and unmounts, so the finally block was
setting state on an unmounted component. Harmless — React removed that
warning in 18.0 and it is a silent no-op — but the ordering read as if the
reset mattered after close. Only the catch stays mounted, so only it resets.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

Author: trangdoan982

apps/obsidian/src/components/ImportSpecsModal.tsx

@@ -87,7 +87,7 @@ const ImportPreviewSelection = ({
     } catch (error) {
       const message = error instanceof Error ? error.message : String(error);
       new Notice(`Failed to import schema: ${message}`, 6000);
-    } finally {
+      // Only the failure path stays mounted; the success path unmounted at onClose()
       setIsApplyingImport(false);
     }
   };