Use new icons

src/app/components/LogInBunker.svelte

@@ -6,6 +6,8 @@
   import {preventDefault} from "@lib/html"
   import Spinner from "@lib/components/Spinner.svelte"
   import Button from "@lib/components/Button.svelte"
+  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 ModalHeader from "@lib/components/ModalHeader.svelte"
   import ModalFooter from "@lib/components/ModalFooter.svelte"
@@ -133,13 +135,13 @@
   {/if}
   <ModalFooter>
     <Button class="btn btn-link" onclick={back} disabled={$loading}>
-      <Icon icon="alt-arrow-left" />
+      <Icon icon={AltArrowLeft} />
       Go back
     </Button>
     {#if mode === "bunker"}
       <Button type="submit" class="btn btn-primary" disabled={$loading || !$bunker}>
         <Spinner loading={$loading}>Next</Spinner>
-        <Icon icon="alt-arrow-right" />
+        <Icon icon={AltArrowRight} />
       </Button>
     {/if}
   </ModalFooter>