VEGA-4499: адаптация UI главной страницы документации

src/assets/scss/app/_base.scss

@@ -0,0 +1,38 @@
+@use '@beeline/design-tokens/scss/tokens/themes' as *;
+
+:root {
+  --app-navbar-height: #{$app-navbar-height};
+}
+
+* {
+  box-sizing: border-box;
+}
+
+html,
+body {
+  margin: 0;
+  padding: 0;
+  width: 100%;
+  height: 100vh;
+}
+
+html {
+  overflow-y: auto;
+}
+
+#app {
+  height: 100vh;
+}
+
+html.dark-theme {
+  background-color: $color-background-base;
+  color: $color-text-active;
+}
+
+a:visited {
+  color: $color-text-active !important;
+}
+
+a:hover {
+  text-decoration: none !important;
+}