Regen TXT versions of all docs under new w3m

Upgraded my system from Kubuntu 22.04 -> 24.04, and now have
w3m 0.5.3, which behaves differently be default, re: bullet point
glyphs, and some indentation.

docs/fr_FR.UTF-8/PNG.txt

@@ -47,7 +47,6 @@ convertir des images existantes en PNG.
 
      
 → Outils en ligne de commande ←
-
     → NetPBM ←
 
         Les outils Bitmap portables (appelés généralement «NetPBM») sont une
@@ -74,23 +73,22 @@ convertir des images existantes en PNG.
 
          
 
-
      
 → Logiciel propriétaire pour Windows ←
-      + CorelDRAW (Corel) — http://www.corel.com/
-      + Illustrator (Adobe) — http://www.adobe.com/products/illustrator.html
-      + Paint Shop Pro (Corel) — https://www.paintshoppro.com/
-      + Photoshop (Adobe) — http://www.adobe.com/products/photoshop.html
-      + PIXresizer (Bluefive software) — http://bluefive.pair.com/
+      o CorelDRAW (Corel) — http://www.corel.com/
+      o Illustrator (Adobe) — http://www.adobe.com/products/illustrator.html
+      o Paint Shop Pro (Corel) — https://www.paintshoppro.com/
+      o Photoshop (Adobe) — http://www.adobe.com/products/photoshop.html
+      o PIXresizer (Bluefive software) — http://bluefive.pair.com/
         pixresizer.htm
 
      
 → Utilisateurs de Macintosh ←
-      + CorelDRAW (Corel) — http://www.corel.com/
-      + GraphicConverter (Lemke Software) — https://www.lemkesoft.de/
+      o CorelDRAW (Corel) — http://www.corel.com/
+      o GraphicConverter (Lemke Software) — https://www.lemkesoft.de/
         mac-fotobearbeitung-mac-diashow-mac-grafikprogramm-mac-bildbetrachter/
-      + Illustrator (Adobe) — http://www.adobe.com/products/illustrator.html
-      + Photoshop (Adobe) — http://www.adobe.com/products/photoshop.html
+      o Illustrator (Adobe) — http://www.adobe.com/products/illustrator.html
+      o Photoshop (Adobe) — http://www.adobe.com/products/photoshop.html