NOT SURE why old one worked but "fixed" binding

frontend/src/routes/double/+page.svelte

@@ -113,7 +113,7 @@
       {#if top_type == "sphere"}
         <AngleEditor
           current_angle_input={top_current_angle_input}
-          angles={top_sphere_angles}
+          bind:angles={top_sphere_angles}
         />
       {/if}
     </div>

frontend/src/routes/spherical/+page.svelte

@@ -93,7 +93,7 @@
     {/if}
 
     {#if bead_type == "multi"}
-      <AngleEditor {current_angle_input} {angles} />
+      <AngleEditor {current_angle_input} bind:angles />
     {/if}
 
     <label for="copies-input"> Copies </label>