Revert "perf: use overflow: clip instead of hidden" (#7273)

This reverts commit 06e817af59.

src/client/ui/visitor/header.vue

@@ -125,8 +125,7 @@ export default defineComponent({
 					display: inline-block;
 					vertical-align: bottom;
 					white-space: nowrap;
-					overflow: hidden; // overflow: clip; をSafariが対応したら消す
-					overflow: clip;
+					overflow: hidden;
 					text-overflow: ellipsis;
 					position: relative;
 
@@ -207,8 +206,7 @@ export default defineComponent({
 		> .title {
 			flex: 1;
 			white-space: nowrap;
-			overflow: hidden; // overflow: clip; をSafariが対応したら消す
-			overflow: clip;
+			overflow: hidden;
 			text-overflow: ellipsis;
 			position: relative;
 			text-align: center;