Also use a right bar for tasks in Choristes version

Only hide the names, show "À faire" instead

RainbowCR.cls

@@ -12,9 +12,11 @@
 \RequirePackage{array}
 \RequirePackage[framemethod=tikz]{mdframed}
 \RequirePackage{marginnote}
+\RequirePackage{eurosym}
 
 %%%%%%%%%% Hacks divers %%%%%%%%%%%%%%%%%%%%
 %\catcode`\·=13 \def\cdottext{\ensuremath\cdot} \let·\cdottext
+\let\texteuro\euro
 
 %%%%%%%%%% Version choristes %%%%%%%%%%%%%%%%%%%%
 \newif\ifchoristes
@@ -90,11 +92,10 @@
 ]{taskbar}
 \newenvironment{task}[1][À définir]{
 
-    \ifchoristes\else%
     \begin{taskbar}%
-    \marginnote{\raggedright{}\color{tasktextcolor}#1}
-    \fi
+    \marginnote{\raggedright{}\color{tasktextcolor}%
+        \ifchoristes{}\textit{À faire}\else #1 \fi}
 }
 {
-    \ifchoristes\else\end{taskbar}\fi
+    \end{taskbar}%\ifchoristes\else\end{taskbar}\fi
 }