Use new icons

src/app/components/SignUpProfile.svelte

@@ -1,6 +1,8 @@
 <script lang="ts">
   import type {Profile} from "@welshman/util"
   import {makeProfile} from "@welshman/util"
+  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 Button from "@lib/components/Button.svelte"
   import ModalFooter from "@lib/components/ModalFooter.svelte"
@@ -23,12 +25,12 @@
     {#snippet footer()}
       <ModalFooter>
         <Button class="btn btn-link" onclick={back}>
-          <Icon icon="alt-arrow-left" />
+          <Icon icon={AltArrowLeft} />
           Go back
         </Button>
         <Button class="btn btn-primary" type="submit">
           Create Account
-          <Icon icon="alt-arrow-right" />
+          <Icon icon={AltArrowRight} />
         </Button>
       </ModalFooter>
     {/snippet}