style.css: override .md-nav__source and .md-source__repository

> .md-nav__source

Set the background color to white for links to resources.
For the mobile version of the documentation site.

Location: Navigation drawer

> .md-source__repository

Set the width to 100% for link to Picodata GitLab in the header.

Location: Header

docs/extra/style.css

@@ -345,3 +345,13 @@ h6 {
 .md-header__source {
     max-width: 4.1rem;
 }
+
+.md-source__repository {
+    max-width: 100%
+}
+
+@media screen and (max-width: 59.984375em) {
+    .md-nav__source {
+        background-color: var(--bg);
+    }
+}