[design] improve link control border radius

Author: zombieFox

src/css/link.css

@@ -306,11 +306,16 @@
 transition: all var(--layout-timing-extra-fast);
 }
 
-.is-link-style-list .link-control{
+.is-link-orientation-top.is-link-style-list .link-control,
+.is-link-orientation-bottom.is-link-style-list .link-control{
 flex-wrap: nowrap;
 }
 
-.is-link-style-block .link-control{
+.is-link-orientation-top.is-link-style-block .link-control{
+flex-wrap: wrap-reverse;
+}
+
+.is-link-orientation-bottom.is-link-style-block .link-control{
 flex-wrap: wrap;
 }
 
@@ -340,20 +345,36 @@
 color:rgb(var(--theme-white));
 }
 
-.is-link-orientation-top .link-control-item:first-child{
-border-radius:var(--theme-radius) 000;
+.is-link-orientation-top.is-link-style-list .link-control-item:nth-child(1){
+border-top-left-radius:var(--theme-radius);
+}
+
+.is-link-orientation-top.is-link-style-list .link-control-item:nth-child(5){
+border-top-right-radius:var(--theme-radius);
+}
+
+.is-link-orientation-bottom.is-link-style-list .link-control-item:nth-child(1){
+border-bottom-left-radius:var(--theme-radius);
+}
+
+.is-link-orientation-bottom.is-link-style-list .link-control-item:nth-child(5){
+border-bottom-right-radius:var(--theme-radius);
+}
+
+.is-link-orientation-top.is-link-style-block .link-control-item:nth-child(4){
+border-top-left-radius:var(--theme-radius);
 }
 
-.is-link-orientation-top .link-control-item:last-child{
-border-radius:0var(--theme-radius)00
+.is-link-orientation-top.is-link-style-block .link-control-item:nth-child(5){
+border-top-right-radius:var(--theme-radius);
 }
 
-.is-link-orientation-bottom .link-control-item:first-child{
-border-radius:000var(--theme-radius);
+.is-link-orientation-bottom.is-link-style-block .link-control-item:nth-child(4){
+border-bottom-left-radius:var(--theme-radius);
 }
 
-.is-link-orientation-bottom .link-control-item:last-child{
-border-radius:00var(--theme-radius)0
+.is-link-orientation-bottom.is-link-style-block .link-control-item:nth-child(5){
+border-bottom-right-radius:var(--theme-radius);
 }
 
 .link-url-text-dark .link-control-item:focus,