Propagate the non-auto user terminal dimensions to the runtime values, always

Previously, if either of the user terminal dimensions was set to a auto (0)
then we wouldn't propagate the other specific (non-zero) value to the runtime
console dimension. Usually a user will set either both values (cols and rows)
to 0/auto or neither. So this isn't a oft-used configuration combo.

src/sbbs3/con_out.cpp

@@ -1108,14 +1108,13 @@ void sbbs_t::set_output_rate(enum output_rate speed)
 void sbbs_t::getdimensions()
 {
 	if(sys_status & SS_USERON) {
-		if(!ansi_getdims()) {
+		ansi_getdims();
 		if(useron.rows >= TERM_ROWS_MIN && useron.rows <= TERM_ROWS_MAX)
 			rows = useron.rows;
 		if(useron.cols >= TERM_COLS_MIN && useron.cols <= TERM_COLS_MAX)
 			cols = useron.cols;
 	}
 }
-}
 
 /****************************************************************************/
 /* performs the correct attribute modifications for the Ctrl-A code			*/