Re work modal scrolling

src/app/components/LogInBunker.svelte

@@ -10,6 +10,8 @@
   import AltArrowLeft from "@assets/icons/alt-arrow-left.svg?dataurl"
   import AltArrowRight from "@assets/icons/alt-arrow-right.svg?dataurl"
   import Icon from "@lib/components/Icon.svelte"
+  import Modal from "@lib/components/Modal.svelte"
+  import ModalBody from "@lib/components/ModalBody.svelte"
   import ModalHeader from "@lib/components/ModalHeader.svelte"
   import ModalFooter from "@lib/components/ModalFooter.svelte"
   import BunkerConnect from "@app/components/BunkerConnect.svelte"
@@ -120,23 +122,25 @@
   })
 </script>
 
-<form class="column gap-4" onsubmit={preventDefault(onSubmit)}>
-  <ModalHeader>
-    {#snippet title()}
-      <div>Log In with a Signer</div>
-    {/snippet}
-    {#snippet info()}
-      <div>Using a remote signer app helps you keep your keys safe.</div>
-    {/snippet}
-  </ModalHeader>
-  <div class:hidden={mode !== "bunker"}></div>
-  {#if mode === "connect"}
-    <BunkerConnect {controller} />
-  {:else}
-    <BunkerUrl {controller} />
-    <Button class="btn {$bunker ? 'btn-neutral' : 'btn-primary'}" onclick={selectConnect}
-      >Log in with a QR code instead</Button>
-  {/if}
+<Modal tag="form" onsubmit={preventDefault(onSubmit)}>
+  <ModalBody>
+    <ModalHeader>
+      {#snippet title()}
+        <div>Log In with a Signer</div>
+      {/snippet}
+      {#snippet info()}
+        <div>Using a remote signer app helps you keep your keys safe.</div>
+      {/snippet}
+    </ModalHeader>
+    <div class:hidden={mode !== "bunker"}></div>
+    {#if mode === "connect"}
+      <BunkerConnect {controller} />
+    {:else}
+      <BunkerUrl {controller} />
+      <Button class="btn {$bunker ? 'btn-neutral' : 'btn-primary'}" onclick={selectConnect}
+        >Log in with a QR code instead</Button>
+    {/if}
+  </ModalBody>
   <ModalFooter>
     <Button class="btn btn-link" onclick={back} disabled={$loading}>
       <Icon icon={AltArrowLeft} />
@@ -149,4 +153,4 @@
       </Button>
     {/if}
   </ModalFooter>
-</form>
+</Modal>