perf(projects): 增强文件校验的兼容性 (#1931)

web/src/components/upload/image.vue

@@ -38,8 +38,8 @@
   })
 
   const beforeImageUpload = (file) => {
-    const isJPG = file.type === 'image/jpeg'
-    const isPng = file.type === 'image/png'
+    const isJPG = file.type?.toLowerCase() === 'image/jpeg'
+    const isPng = file.type?.toLowerCase() === 'image/png'
     if (!isJPG && !isPng) {
       ElMessage.error('上传头像图片只能是 jpg或png 格式!')
       return false