Fix quotes rendering in inline filtered html

Before:
a
>x
b
>z

This message would have been shown all gray in the client due to it not
beginning with a >. Now, the colors are properly shown for both quotes
and the non-quote text in between.

src/qml/SidePane/RoomDelegate.qml

@@ -80,7 +80,7 @@ HTileDelegate {
         ) + ": " + ev.inline_content
 
         return text.replace(
-            /< *span +class=['"]?quote['"]? *>(.+)<\/ *span *>/g,
+            /< *span +class=['"]?quote['"]? *>(.+?)<\/ *span *>/g,
             '<font color="' +
             theme.sidePane.room.subtitleQuote +
             '">$1</font>',