Seperated chart from box; fixed kkr segfault.

makefile

@@ -1,11 +1,12 @@
-CFLAGS = -std=c23 -Wextra -pedantic -Wall -pedantic
-LDFLAGS = -lncurses
+CFLAGS = -std=c23 -Wextra -pedantic -Wall -O0 -g3 -fsanitize=address
+LDFLAGS = -lncurses -fsanitize=address
 
-main: box.o main.o ui.o util.o
+main: box.o main.o ui.o util.o chart.o
 
 .PHONY: clean
 
 box.o: box.c
+chart.o: chart.c
 main.o: main.c
 ui.o: ui.c
 util.o: util.c