move icons to public folder

src/views/FleetingNotes.vue

@@ -78,7 +78,7 @@ watch(mode, async (newMode) => {
         <div class="columns is-centered">
           <div class="column is-half is-centered">
             <button class="button is-light" @click="toggleMode">
-              <img src="@/assets/icons/saved.svg" alt="save" />
+              <img src="/assets/saved.svg" alt="save" />
             </button>
           </div>
         </div>

src/views/SpaceCowboy.vue

@@ -1,9 +1,9 @@
 <template>
   <main class="space-cowboy content">
     <p>
-      <img src="@/assets/icons/alert.svg" alt="alert" />
+      <img src="/assets/alert.svg" alt="alert" />
       Oops, you've been lost!
-      <img src="@/assets/icons/alert.svg" alt="alert" />
+      <img src="/assets/alert.svg" alt="alert" />
     </p>
     <p>A note link can't be used as URL.</p>
     <router-link class="button is-links" :to="{ name: 'Home' }"