fix(ui-docs-client): Make sidebar search not wrap

Fixes: INSTUI-2630

Test plan:
- Sidebar-search icon should no longer wrap input
  in Firefox and Safari

Change-Id: If46fdfb92834687755f04ec91503b8348bcc2dbd
Reviewed-on: https://gerrit.instructure.com/c/instructure-ui/+/237909
Tested-by: Service Cloud Jenkins <svc.cloudjenkins@instructure.com>
Reviewed-by: Pam Hiett <phiett@instructure.com>
Product-Review: Pam Hiett <phiett@instructure.com>
QA-Review: Daniel Sasaki <dsasaki@instructure.com>
Visual-Regression-Test: Chris Hart <chart@instructure.com>

Author: Chris Hart

packages/ui-docs-client/src/Nav/index.js

@@ -371,6 +371,7 @@ import { NavToggle } from '../NavToggle'
             type="search"
             renderBeforeInput={<IconSearchLine inline={false} />}
             messages={!hasMatches ? errorMessage : null}
+            shouldNotWrap
           />
         </View>
         <View role="navigation" margin="medium none none" display="block">