agb check state

src/routes/(components)/signup.svelte

@@ -56,6 +56,7 @@
 
   type StepType = (typeof Steps)[keyof typeof Steps];
   let currentStep = $state<StepType>(Steps.WELCOME);
+  let agbAgreed = $state<boolean>(false);
   let email = $state<string>("");
   let firstname = $state<string>("");
   let lastname = $state<string>("");
@@ -188,7 +189,7 @@
             By registering, you confirm that {email} is your email
           {/if}
           <div class="items-top flex space-x-2">
-            <Checkbox autofocus id="terms1" />
+            <Checkbox bind:checked={agbAgreed} autofocus id="terms1" />
             <div class="grid gap-1.5 leading-none">
               <Label
                 for="terms1"
@@ -202,6 +203,7 @@
             </div>
           </div>
           <Button
+            disabled={!agbAgreed}
             variant="default"
             class="w-full"
             on:click={() => {