Show the screens and ESP Screens as they are now in the README pictures (docs only)

Rendered again from firmware 0.2.71 and the editor of 0.2.85 on the demo homes, with the render tooling
brought over to the core and board files of 0.2.84: the tile pages with 0.2.85's colours (a running timer
amber, a docked robot and idle scripts grey, the full-page speaker lit while it plays), the cards with the
icon edges of 0.2.75, and the editor with 48 tiles, the icon-left tiles of 0.2.76, Size and Page in the
tile drawer, Perform action on the curtains as the caption says, and every Screen settings row. The camera
pictures show a free Unsplash photo by Virginia Marinova, credited in the README. The two photos at the top
carry the current firmware on their screen: the page with scenes, scripts, the robot and the table lamp,
and the vacuum card with its cleaning mode.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

README_EXTENDED.md

@@ -428,7 +428,7 @@ takes effect at once, and appears in ESP Screens within a second, so both sides
 the same value. The **Screen settings** cards in ESP Screens have the same rows.
 
 <p align="center">
-  <img src="docs/images/editor-screen-settings.png" width="98%" alt="Screen settings in ESP Screens: Brightness with Dark mode and standby, Night with its hours and brightness, and Screen with the clock, back to page 1, swiping and the rotation">
+  <img src="docs/images/editor-screen-settings.png" width="98%" alt="Screen settings in ESP Screens: Brightness with Dark mode and standby, Night with its hours and brightness, and Screen with the clock, back to page 1, swiping, the page buttons and the rotation">
 </p>
 
 **In Home Assistant** (firmware 0.2.49+), every setting is an entity on the screen's device, under