[ nostr-dev-kit/ndk ] fix: initialize showcase sample users directly to prevent black box rendering
Initialize NDKUser instances directly in component state instead of relying on
async EditProps loading. This ensures showcase components render immediately
with sample data instead of showing black boxes.
Changes:
- follow/+page.svelte: Initialize sampleUser with NDKUser constructor
- mute/+page.svelte: Initialize sampleUser with NDKUser constructor
- user-card/+page.svelte: Initialize all 9 users with NDKUser constructor