Update Localizable.strings

Aligned string to others in the nextcloud universe.

Signed-off-by: rakekniven <mark.ziegler@rakekniven.de>

iOSClient/Supporting Files/en.lproj/Localizable.strings

@@ -135,7 +135,7 @@
 "_move_or_copy_"            = "Move or copy";
 "_copy_"                    = "Copy";
 "_now_"                     = "Now";
-"_wait_"                    = "Please, wait...";
+"_wait_"                    = "Please wait...";
 
 // App