init backend, added admin page in front

Signed-off-by: Nicolas Froger <nicolas@kektus.xyz>

summer2024-frontend/src/components/ui/table/TableEmpty.vue

@@ -0,0 +1,34 @@
+<script setup>
+import { computed } from "vue";
+import TableRow from "./TableRow.vue";
+import TableCell from "./TableCell.vue";
+import { cn } from "@/lib/utils";
+
+const props = defineProps({
+  class: { type: null, required: false },
+  colspan: { type: Number, required: false, default: 1 },
+});
+
+const delegatedProps = computed(() => {
+  const { class: _, ...delegated } = props;
+
+  return delegated;
+});
+</script>
+
+<template>
+  <TableRow>
+    <TableCell
+      :class="
+cn(
+  'p-4 whitespace-nowrap align-middle text-sm text-foreground',
+  props.class
+)"
+      v-bind="delegatedProps"
+    >
+      <div class="flex items-center justify-center py-10">
+        <slot />
+      </div>
+    </TableCell>
+  </TableRow>
+</template>