editors/pragtical: fix build on powerpc*

1. On powerpc:
../src/api/utf8.c:854:22: error: use of undeclared identifier 'INT_MAX'
  854 |   if (pose - posi >= INT_MAX)  /* (lua_Integer -> int) overflow? */
      |                      ^
2. Also set USES=luajit to use luajit-openresty on powerpc64*.

editors/pragtical/Makefile

@@ -31,7 +31,7 @@ OPTIONS_DEFAULT=	JIT
 OPTIONS_SUB=	yes
 
 JIT_DESC=	Use Lua JIT compiler
-JIT_LIB_DEPENDS=	libluajit-5.1.so:lang/luajit-devel
+JIT_USES=	luajit
 JIT_USES_OFF=	lua:54
 JIT_MESON_OFF=	-Djit=false
 

editors/pragtical/files/patch-src_api_utf8.c

@@ -0,0 +1,10 @@
+--- src/api/utf8.c.orig	2025-01-21 19:20:49 UTC
++++ src/api/utf8.c
+@@ -29,6 +29,7 @@
+ #include <lualib.h>
+ 
+ #include <assert.h>
++#include <limits.h>
+ #include <string.h>
+ #include <stdint.h>
+ #include <stdlib.h>