Use XK_ANY_MOD instead of XK_NO_MOD in key definition

Usually terminal emulators don't generate any sequence for a combination
they don't have registered, for example Shift + Next, but st behavior
previous to the keyboard patch generates the sequence without the modifier,
in this example Next. This patch uses the XK_ANY_MOD in order to get this
same behaviour.
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 config.def.h |  114 ++++++++++++++++++++++++++++++----------------------------
 1 file changed, 59 insertions(+), 55 deletions(-)