fix: cannot upload or delete logo (closes #230)

server/src/storage/delete-file.ts

@@ -1,7 +1,22 @@
 import { getFilePath } from './get-file-path';
 import { promises } from 'fs';
 
-export function deleteFile(id: string): Promise<void> {
+async function fileExists(path: string): Promise<boolean> {
+  try {
+    await promises.stat(path);
+    return true;
+  } catch (e) {
+    return false;
+  }
+}
+
+export async function deleteFile(id: string): Promise<void> {
   const filePath = getFilePath(id);
+
+  const exists = await fileExists(filePath);
+  if (!exists) {
+    return;
+  }
+
   return promises.unlink(filePath);
 }