部分bug修复和对话中的图片过期处理

src/assets/style/style.less

@@ -2004,10 +2004,10 @@ textarea:focus{
 				border: none;
 				background-color: rgba(0, 0, 0, 0);
 				.upload_item{
-					width: 6rem;
+					width: 8rem;
 					.upload_file_item{
-						height: 6rem;
-						width: 6rem;
+						height: 8rem;
+						width: 8rem;
 					}
 				}
 			}
@@ -2171,9 +2171,11 @@ textarea:focus{
 		margin-left: 2rem;
 		display: flex;
 		font-size: 1.6rem;
-		padding: 1rem 2rem;
 		box-sizing: content-box;
 		justify-content: center;
+		padding: 0 2rem;
+		line-height: 5.4rem;
+		height: 5.4rem;
 	}
 	.generage_btn{
 		width: 10rem;