Revert changes to width of divider

Author: philippjfr

src/panel_splitjs/dist/css/splitjs.css

@@ -158,8 +158,7 @@
 /* Horizontal variant for divider */
 .gutter-vertical > .divider {
   top: 50%;
-  left: 2.5%;
-  width: 95%;
+  width: 100%;
   height: var(--thickness);
   background:
     linear-gradient(to right,
@@ -173,8 +172,7 @@
 /* Vertical variant for divider */
 .gutter-horizontal > .divider {
   left: 50%;
-  top: 2.5%;
-  height: 95%;
+  height: 100%;
   width: var(--thickness);
   background:
     linear-gradient(to bottom,