Sync FAQ docs re: FontCache slowness

docs/fr_FR.UTF-8/FAQ.txt

@@ -5,7 +5,7 @@
        Copyright © 2002-2024 by divers contributeurs; voir AUTHORS.txt.
                              https://tuxpaint.org/
 
-                                 mai 14, 2024
+                                 juin 4, 2024
 
 +-----------------------------------+
 |        Table des matières         |
@@ -546,6 +546,29 @@ Tux Paint ne veut pas fonctionner
 
 
 
+Tux Paint launches very slowly
+
+    The first time Tux Paint is launched (for a particular user), it may take a
+    minute or more to respond. The font system used by Tux Paint (FontConfig,
+    via Pango) is creating a 'cache' of information about the fonts on your
+    system. Subsequent launches of Tux Paint should be fast.
+
+    While the font cache is generated behind the scenes, Tux Paint should
+    remain interactive (showing an animated 'please wait' animation) as this
+    process runs.
+
+    If this delay persists or reoccurs, it could be that the cache is being
+    deleted — for example, in an environment (such as a school computer lab)
+    where a system is returned into a default state when a user finishes using
+    the program. Some versions of Tux Paint ship with a file, "fonts.conf" (
+    documented at freedesktop.org), which can be modified to have FontConfig
+    store the file elsewhere, e.g.:
+
+        <cachedir>C:\Documents and Settings\All Users\Application Data\
+        fontconfig\cache</cachedir>
+
+
+
 Je ne peux pas quitter Tux Paint
 
     L'option "noquit" est activée. Cela désactive le bouton "Quitter" dans la