feat(components): add new Element Plus components to TypeScript definitions

- Added ElCascader, ElCheckboxGroup, ElDescriptions, ElDescriptionsItem, ElText, and ElUpload to the Vue component definitions.
- Removed unused image files from the server directory.

client/src/components.d.ts

@@ -15,10 +15,14 @@ declare module 'vue' {
     ElBadge: typeof import('element-plus/es')['ElBadge']
     ElButton: typeof import('element-plus/es')['ElButton']
     ElButtonGroup: typeof import('element-plus/es')['ElButtonGroup']
+    ElCascader: typeof import('element-plus/es')['ElCascader']
     ElCheckbox: typeof import('element-plus/es')['ElCheckbox']
+    ElCheckboxGroup: typeof import('element-plus/es')['ElCheckboxGroup']
     ElConfigProvider: typeof import('element-plus/es')['ElConfigProvider']
     ElContainer: typeof import('element-plus/es')['ElContainer']
     ElDatePicker: typeof import('element-plus/es')['ElDatePicker']
+    ElDescriptions: typeof import('element-plus/es')['ElDescriptions']
+    ElDescriptionsItem: typeof import('element-plus/es')['ElDescriptionsItem']
     ElDialog: typeof import('element-plus/es')['ElDialog']
     ElDivider: typeof import('element-plus/es')['ElDivider']
     ElDrawer: typeof import('element-plus/es')['ElDrawer']
@@ -46,6 +50,8 @@ declare module 'vue' {
     ElTabPane: typeof import('element-plus/es')['ElTabPane']
     ElTabs: typeof import('element-plus/es')['ElTabs']
     ElTag: typeof import('element-plus/es')['ElTag']
+    ElText: typeof import('element-plus/es')['ElText']
+    ElUpload: typeof import('element-plus/es')['ElUpload']
     Icons: typeof import('./components/icons/index.vue')['default']
     RouterLink: typeof import('vue-router')['RouterLink']
     RouterView: typeof import('vue-router')['RouterView']