Update to new card design (#4065)

Co-authored-by: filtered <176114999+webfiltered@users.noreply.github.com>

src/components/dialog/content/manager/packBanner/PackBanner.vue

@@ -0,0 +1,41 @@
+<template>
+  <img
+    :src="isImageError ? DEFAULT_BANNER : imgSrc"
+    :alt="nodePack.name + ' banner'"
+    class="object-cover"
+    :style="{ width: cssWidth, height: cssHeight }"
+    @error="isImageError = true"
+  />
+</template>
+
+<script setup lang="ts">
+import { computed, ref } from 'vue'
+
+import { components } from '@/types/comfyRegistryTypes'
+
+const DEFAULT_BANNER = '/assets/images/fallback-gradient-avatar.svg'
+
+const {
+  nodePack,
+  width = '100%',
+  height = '12rem'
+} = defineProps<{
+  nodePack: components['schemas']['Node'] & { banner?: string } // Temporary measure until banner is in backend
+  width?: string
+  height?: string
+}>()
+
+const isImageError = ref(false)
+const shouldShowFallback = computed(
+  () => !nodePack.banner || nodePack.banner.trim() === '' || isImageError.value
+)
+const imgSrc = computed(() =>
+  shouldShowFallback.value ? DEFAULT_BANNER : nodePack.banner
+)
+
+const convertToCssValue = (value: string | number) =>
+  typeof value === 'number' ? `${value}rem` : value
+
+const cssWidth = computed(() => convertToCssValue(width))
+const cssHeight = computed(() => convertToCssValue(height))
+</script>