[applet/pager] Add extra <br> after a plain text single window title
When there's only one visible window on a virtual desktop, the window's title is not wrapped in
- but rather rendered as a plain text, so
two
tags are actually needed to make a blank line between the two sections.
| Before | After |
|---|---|
 |
 |
Reference, with >= 1 windows both open and minimized:
