feat: New Assistants Edit Page (#11920)

# Pull Request Template

## Description

Fixes https://linear.app/chatwoot/issue/CW-4602/assistants-edit-page

### Screenshots
<img width="1650" height="890" alt="image"
src="https://github.com/user-attachments/assets/f9834cd3-9cf3-4173-8d33-1aad04d8991e"
/>
<img width="1650" height="890" alt="image"
src="https://github.com/user-attachments/assets/a628328a-fdfd-4ee7-86b5-2a1945e0c114"
/>

---------

Co-authored-by: Muhsin Keloth <muhsinkeramam@gmail.com>

app/javascript/dashboard/components-next/captain/SettingsPageLayout.vue

@@ -0,0 +1,91 @@
+<script setup>
+import { useRouter } from 'vue-router';
+import PaginationFooter from 'dashboard/components-next/pagination/PaginationFooter.vue';
+import Spinner from 'dashboard/components-next/spinner/Spinner.vue';
+import Breadcrumb from 'dashboard/components-next/breadcrumb/Breadcrumb.vue';
+
+defineProps({
+  isFetching: {
+    type: Boolean,
+    default: false,
+  },
+  isEmpty: {
+    type: Boolean,
+    default: false,
+  },
+  currentPage: {
+    type: Number,
+    default: 1,
+  },
+  totalCount: {
+    type: Number,
+    default: 100,
+  },
+  itemsPerPage: {
+    type: Number,
+    default: 25,
+  },
+  showPaginationFooter: {
+    type: Boolean,
+    default: false,
+  },
+  breadcrumbItems: {
+    type: Array,
+    default: () => [],
+  },
+});
+
+const emit = defineEmits(['update:currentPage']);
+
+const router = useRouter();
+
+const handlePageChange = event => {
+  emit('update:currentPage', event);
+};
+
+const handleBreadcrumbClick = item => {
+  router.push({
+    name: item.routeName,
+  });
+};
+</script>
+
+<template>
+  <section
+    class="my-4 px-10 flex flex-col w-full h-screen overflow-y-auto bg-n-background"
+  >
+    <div class="max-w-[60rem] mx-auto flex flex-col w-full h-full">
+      <header class="mb-7 sticky top-0 z-10 bg-n-background">
+        <Breadcrumb :items="breadcrumbItems" @click="handleBreadcrumbClick" />
+      </header>
+      <main class="flex gap-16 w-full flex-1 pb-16">
+        <section
+          v-if="$slots.body || $slots.emptyState || isFetching"
+          class="flex flex-col w-full"
+        >
+          <div
+            v-if="isFetching"
+            class="flex items-center justify-center py-10 text-n-slate-11"
+          >
+            <Spinner />
+          </div>
+          <div v-else-if="isEmpty">
+            <slot name="emptyState" />
+          </div>
+          <slot v-else name="body" />
+        </section>
+        <section v-if="$slots.controls" class="flex w-full">
+          <slot name="controls" />
+        </section>
+      </main>
+      <footer v-if="showPaginationFooter" class="sticky bottom-0 z-10 pb-4">
+        <PaginationFooter
+          :current-page="currentPage"
+          :total-items="totalCount"
+          :items-per-page="itemsPerPage"
+          @update:current-page="handlePageChange"
+        />
+      </footer>
+    </div>
+  </section>
+</template>