span bar row size fix. resolves jaegertracing#589 (jaegertracing#599)

(cherry picked from commit 3fe952ab8c829072c4e6cd314bfd656c1d1ebfe5)
Signed-off-by: Ivan Kopeykin <ikopeykin@ozon.ru>
Signed-off-by: vvvprabhakar <vvvprabhakar@gmail.com>

packages/jaeger-ui/src/components/TracePage/TraceTimelineViewer/SpanTreeOffset.css

@@ -28,7 +28,7 @@ limitations under the License.
   /* The size of the indentGuide is based off of the iconWrapper */
   padding-right: calc(0.5rem + 12px);
   height: 100%;
-  border-left: 1px solid transparent;
+  border-left: 3px solid transparent;
   display: inline-flex;
 }
 
@@ -39,15 +39,11 @@ limitations under the License.
 }
 
 .SpanTreeOffset--indentGuide.is-active {
-  /* The size of the indentGuide is based off of the iconWrapper */
-  padding-right: calc(0.5rem + 11px);
-  border-left: 0px;
+  border-left: 3px solid darkgrey;
 }
 
 .SpanTreeOffset--indentGuide.is-active:before {
-  content: '';
-  padding-left: 3px;
-  background-color: darkgrey;
+  background-color: transparent;
 }
 
 .SpanTreeOffset--iconWrapper {