Wait for the *For Business* menu item to show up.

Identified by the `--divider` subclass, on some pages, this item gets added
later.  Actually, the entire navbar content gets rebuilt, causing us to have
to reconnect the LIT menu button.

If this pans out, we can make it the official item, simplifying this code.

Issue #242.

␄

linkedin-tool.user.js

@@ -6630,7 +6630,26 @@
       const me = 'waitOnPageLoadedEnough';
       this.logger.entered(me);
 
+      // TODO(#242): If the choice of the divider class does not cause any
+      // problems, we should make that the official item to wait for, and then
+      // populate this.#navbar with a simple call to document.querySelector().
       this.#navbar = await NH.web.waitForSelector('#global-nav', 0);
+      try {
+        const waitTime = 1000;
+        await NH.web.waitForSelector(
+          '.global-nav__primary-item--divider', waitTime
+        );
+        this.logger.log('Divider showed up');
+      } catch (e) {
+        this.logger.log(
+          'Divider did not show up, but that is all right...',
+          'just a way of wasting time',
+          e
+        );
+        if (litOptions.enableDevMode) {
+          NH.base.issues.post('TODO(#242): Wait for divider timed out');
+        }
+      }
       this.#finishConstruction();
 
       this.logger.leaving(me);