Top-align install script button (#10592)

Author: japarson

src/Bootstrap/dist/css/bootstrap-theme.css

@@ -468,7 +468,7 @@
           .install-script {
             display: flex;
             justify-content: space-between;
-            align-items: center;
+            align-items: start;
             padding: 6px 8px;
             background-color: var(--neutralBackground1Rest);
             font-family: @font-family-monospace;