[JENKINS-76029] Fix pipeline branch labels overflowing into sidebar

The Pipeline plugin uses ::before pseudo-elements with position:absolute
and translateX(-100%) to place branch labels in the left margin of console
output. When labels are long, they overflow into the sidebar.

This fix overrides the plugin styling to display labels inline with the
console output text instead of in the left margin.

Author: LakshyaBagani

src/main/scss/pages/_build.scss

@@ -303,3 +303,11 @@ body:has(.app-settings-container) {
     margin-block: 1.0625rem;
   }
 }
+
+// Fix for JENKINS-76029: Prevent pipeline branch labels from overflowing into sidebar
+// The Pipeline plugin uses ::before pseudo-elements with position:absolute and translateX(-100%)
+// to place labels in the left margin. Override this to display inline instead.
+.console-output [class*="pipeline-node-"]::before {
+  position: static !important;
+  transform: none !important;
+}