refactor: standardize app property names and improve TypeScript definitions

- Updated property names in AppCard.vue, AppDetailModal.vue, AppGrid.vue, and other components to use camelCase for consistency.
- Enhanced TypeScript definitions for props and emits in various components to improve type safety.
- Refactored download status handling in processInstall.ts to align with updated App interface.
- Improved error handling and type definitions in DownloadDetail.vue and related components.
- Added optional properties and refined existing interfaces in typedefinition.ts for better clarity and usability.

src/components/AppGrid.vue

@@ -14,20 +14,16 @@
   </div>
 </template>
 
-<script setup>
-import { defineProps, defineEmits } from 'vue';
+<script setup lang="ts">
 import AppCard from './AppCard.vue';
+import type { App } from '@/global/typedefinition';
 
-defineProps({
-  apps: {
-    type: Array,
-    required: true
-  },
-  loading: {
-    type: Boolean,
-    required: true
-  }
-});
+defineProps<{
+  apps: App[];
+  loading: boolean;
+}>();
 
-defineEmits(['open-detail']);
+defineEmits<{
+  (e: 'open-detail', app: App): void;
+}>();
 </script>