Finish space create form

src/app/components/InfoNip29.svelte

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+<script lang="ts">
+  import Link from '@lib/components/Link.svelte'
+  import Icon from '@lib/components/Icon.svelte'
+  import {clip} from '@app/toast'
+</script>
+
+<div class="column gap-4">
+  <h1 class="heading">What is a relay?</h1>
+  <p>
+    Flotilla hosts spaces on the <Link external href="https://nostr.com/">Nostr protocol</Link>.
+    Nostr uses "relays" to host data, which are special-purpose servers that speak nostr's language.
+    This means that anyone can host their own data, making the web more decentralized and resilient.
+  </p>
+  <p>
+    Only some relays support spaces. You can find a list of suggested relays below,
+    or you can <Link external href="https://coracle.tools">host your own</Link>.
+    If you do decide to join someone else's, make sure to follow their directions for registering
+    as a user.
+  </p>
+  <div class="card flex-row justify-between">
+    relay.whatever.com
+    <button on:click={() => clip('relay.whatever.com')}>
+      <Icon icon="copy" />
+    </button>
+  </div>
+  <button class="btn btn-primary" on:click={() => history.back()}>
+    Got it
+  </button>
+</div>