fix ui: make navbar cover whole width of page (#2213)

Previously, there was a large url on the page, and the a tag did not
have word break property set - which resulted in the browser trying to
display the whole page with increased width. Allowing the a tag to have
a word break fixes this issue.

web/styles/globals.scss

@@ -86,6 +86,7 @@ body {
 
   a {
     color: var(--theme-color-action);
+    word-break: break-word;
 
     &:hover {
       color: var(--theme-color-palette-12);