fix reboot-bootstrap-nav

src/client/styles/scss/theme/_reboot-bootstrap-nav.scss

@@ -1 +1,41 @@
-@import '~bootstrap/scss/nav';
+//
+//
+// Apply partially
+//   https://github.com/twbs/bootstrap/blob/v4.5.0/scss/_nav.scss
+//
+//
+
+//
+// Tabs
+//
+
+.nav-tabs {
+  border-bottom: $nav-tabs-border-width solid $nav-tabs-border-color;
+
+  .nav-link {
+    border: $nav-tabs-border-width solid transparent;
+    @include border-top-radius($nav-tabs-border-radius);
+
+    @include hover-focus() {
+      border-color: $nav-tabs-link-hover-border-color;
+    }
+
+    &.disabled {
+      color: $nav-link-disabled-color;
+      background-color: transparent;
+      border-color: transparent;
+    }
+  }
+
+  .nav-link.active,
+  .nav-item.show .nav-link {
+    color: $nav-tabs-link-active-color;
+    background-color: $nav-tabs-link-active-bg;
+    border-color: $nav-tabs-link-active-border-color;
+  }
+
+  .dropdown-menu {
+    // Remove the top rounded corners here since there is a hard edge above the menu
+    @include border-top-radius(0);
+  }
+}