Allow all users to be added to a group

packages/builder/src/pages/builder/portal/users/users/[userId].svelte

@@ -321,9 +321,7 @@
         <div class="tableTitle">
           <Heading size="S">Groups</Heading>
           <div bind:this={popoverAnchor}>
-            <Button disabled={readonly} on:click={popover.show()} secondary>
+            <Button on:click={popover.show()} secondary>Add to group</Button>
-              Add to group
-            </Button>
           </div>
           <Popover align="right" bind:this={popover} anchor={popoverAnchor}>
             <UserGroupPicker