Updating admin style

packages/rocketchat_theme/client/imports/components/header.css

@@ -1,5 +1,5 @@
 .rc-header.rc-header--fullpage {
-	padding: 1.25rem 0.5rem 0.75rem;
+	padding: 1.25rem 1rem 0.75rem;
 
 	& .rc-header__wrap {
 

packages/rocketchat_theme/client/imports/components/tabs.css

@@ -1,7 +1,7 @@
 .tabs {
 	margin-bottom: 0.5rem;
 
-	border-bottom: 1px solid rgba(216, 216, 216, 0.4);
+	border-bottom: 2px solid var(--input-border-color);
 }
 
 .tabs-wrapper {
@@ -9,7 +9,7 @@
 
 	width: 100%;
 
-	margin: 0 -1rem -1px -1rem;
+	margin: 0 -1rem -2px -1rem;
 }
 
 .tab {
@@ -22,7 +22,7 @@
 
 	color: var(--rc-color-primary-light);
 
-	border-bottom: 1px solid transparent;
+	border-bottom: 2px solid transparent;
 
 	font-size: 1rem;