Increase start server map limit in Team Arena ui to match q3_ui

Allow reading more scripts/*.arena files and allow up to 1024 maps
instead of 128.

code/ui/ui_gameinfo.c

@@ -136,7 +136,7 @@ void UI_LoadArenas( void ) {
 	int			numdirs;
 	vmCvar_t	arenasFile;
 	char		filename[128];
-	char		dirlist[1024];
+	char		dirlist[4096];
 	char*		dirptr;
 	int			i;
 	int			dirlen;
@@ -152,7 +152,7 @@ void UI_LoadArenas( void ) {
 	}
 
 	// get all arenas from .arena files
-	numdirs = trap_FS_GetFileList("scripts", ".arena", dirlist, 1024 );
+	numdirs = trap_FS_GetFileList("scripts", ".arena", dirlist, 4096 );
 	dirptr  = dirlist;
 	for (i = 0; i < numdirs; i++, dirptr += dirlen+1) {
 		dirlen = strlen(dirptr);

code/ui/ui_local.h

@@ -611,7 +611,7 @@ typedef struct {
 #define MAX_HEADNAME  32
 #define MAX_TEAMS 64
 #define MAX_GAMETYPES 16
-#define MAX_MAPS 128
+#define MAX_MAPS MAX_ARENAS
 #define MAX_SPMAPS 16
 #define PLAYERS_PER_TEAM 5
 #define MAX_PINGREQUESTS		32