Extract v1 dash link styles to file so can define OL only vars

services/web/public/stylesheets/_ol_style_includes.less

@@ -0,0 +1 @@
+@import "app/sidebar-v1-dash-link.less";

services/web/public/stylesheets/app/project-list.less

@@ -110,33 +110,6 @@
 	}
 }
 
-.project-list-sidebar-v1-link {
-	position: absolute;
-	bottom: 0;
-	height: @v1-dash-link-height;
-	background-color: @sidebar-hover-bg; // TODO: Fix var names
-	text-align: center;
-	display: flex;
-	flex-direction: column;
-	justify-content: center;
-	color: white;
-}
-
-	.project-list-sidebar-v1-link a {
-		display: block;
-		margin-left: auto;
-		margin-right: auto;
-		margin-top: 4px;
-		padding-top: 0;
-		padding-bottom: 0;
-		background-color: @sidebar-bg; // TODO: Fix var names
-		color: #fff;
-	}
-
-	.project-list-sidebar-v1-link a:hover {
-		background-color: @sidebar-active-bg; // TODO: Fix var names
-	}
-
 .userNotifications {
 	ul {
 		margin-bottom:0px;

services/web/public/stylesheets/app/sidebar-v1-dash-link.less

@@ -0,0 +1,26 @@
+.project-list-sidebar-v1-link {
+	position: absolute;
+	bottom: 0;
+	height: @v1-dash-link-height;
+	background-color: @v1-dash-link-bg;
+	text-align: center;
+	display: flex;
+	flex-direction: column;
+	justify-content: center;
+	color: white;
+}
+
+	.project-list-sidebar-v1-link a {
+		display: block;
+		margin-left: auto;
+		margin-right: auto;
+		margin-top: 4px;
+		padding-top: 0;
+		padding-bottom: 0;
+		background-color: @v1-dash-link-btn-bg;
+		color: #fff;
+	}
+
+	.project-list-sidebar-v1-link a:hover {
+		background-color: @v1-dash-link-btn-hover-bg;
+	}

services/web/public/stylesheets/core/ol-variables.less

@@ -111,6 +111,9 @@
 @sidebar-hover-bg               : @ol-blue-gray-4;
 @sidebar-hover-text-decoration  : none;
 @v1-dash-link-height            : 110px;
+@v1-dash-link-bg                : @ol-blue-gray-4;
+@v1-dash-link-btn-bg            : @ol-blue-gray-5;
+@v1-dash-link-btn-hover-bg      : @ol-blue-gray-6;
 
 @folders-menu-margin            : 0 -(@grid-gutter-width / 2);
 @folders-menu-line-height       : @structured-list-line-height;

services/web/public/stylesheets/ol-style.less

@@ -1,4 +1,5 @@
 // Core variables and mixins
 @import "core/ol-variables.less";
 @import "app/ol-style-guide.less";
-@import "_style_includes.less";
+@import "_style_includes.less";
+@import "_ol_style_includes.less";