fix: filter servers when listing them

server/shared.ts

@@ -66,11 +66,9 @@ export async function getApp(server: string) {
 }
 
 export async function listServers() {
-  const keys = await storage.getKeys()
+  const keys = await storage.getKeys('servers:')
   const servers = new Set<string>()
   for await (const key of keys) {
-    if (!key.startsWith('servers:'))
-      continue
     const id = key.split(':').pop()!.replace(/\.json$/, '')
     if (id)
       servers.add(id.toLocaleLowerCase())