ux: minor style tweaks to cards and sidemenu icons for white theme

public/sass/base/_icons.scss

@@ -15,6 +15,10 @@
   background-image: url('../img/icons_#{$theme-name}_theme/icon_alert.svg');
 }
 
+.gicon-alert-alt {
+  background-image: url('../img/icons_#{$theme-name}_theme/icon_alert_alt.svg');
+}
+
 .gicon-datasources {
   background-image: url('../img/icons_#{$theme-name}_theme/icon_data_sources.svg');
 }
@@ -58,3 +62,14 @@
 .gicon-zoom-out {
   background-image: url('../img/icons_#{$theme-name}_theme/icon_zoom_out.svg');
 }
+
+.sidemenu {
+  .gicon-dashboard {
+    background-image: url('../img/icons_dark_theme/icon_dashboard.svg');
+  }
+  .gicon-alert {
+    background-image: url('../img/icons_dark_theme/icon_alert.svg');
+  }
+}
+
+

public/sass/components/_cards.scss

@@ -200,9 +200,8 @@
   }
 
   .card-item {
-    border-bottom: .2rem solid $page-bg;
-    border-radius: 0;
-    box-shadow: none;
+    border-bottom: 3px solid $page-bg;
+    border-radius: 2px;
   }
 
   .card-item-header {