docs: the manual and the user guide describe the badge bar, the dock and the slide-over pages

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

help/C/org.udpscope.app/status.page

@@ -18,7 +18,7 @@
 
   <section id="reach">
     <title>How to reach it</title>
-    <p>The bar is always visible under the plot. Click <gui>ⓘ</gui> for the detail popover.</p>
+    <p>The bar is always visible at the foot of the window, under the badge bar. Click <gui>ⓘ</gui> for the detail popover.</p>
   </section>
 
   <section id="knowing">