feat: 优化处理了滚动条的问题

pages/chat/styles/ChatMainList.scss

@@ -49,14 +49,6 @@
 			display: flex;
 			flex-direction: column;
 			
-			.area-msg-list-content {
-				/* 隐藏滚动条 */
-				scrollbar-width: none; 
-				&::-webkit-scrollbar {
-				  display: none; 
-				}
-			}
-			
 			.message-item-ai {
 				display: flex;
 				justify-content: flex-start;
@@ -140,15 +132,6 @@
 			align-items: center;
 		}
 	}
-	
-	::-webkit-scrollbar {
-		display: none;
-		width: 0 !important;
-		height: 0 !important;
-		-webkit-appearance: none;
-		background: transparent;
-		color: transparent;
-	}
 
 	// 打字机光标闪烁动画
 	.typing-cursor {