Allow variable width in font

viewsheets.ts

@@ -4,10 +4,12 @@ import { COLOR } from "./colors.ts";
 import { getSheet } from "./sheet.ts";
 import { mouseClick, mousePos } from "./mouse.ts";
 import { getCart } from "./cart.ts";
-import { fontHeight } from "./font.ts";
+import { font } from "./font.ts";
 import { codeIcon, spriteIcon } from "./icons.ts";
 import { reGridWithGap } from "./util.ts";
 
+const fontHeight = font.height;
+
 export const page = {activeSheet: 0, tab: "sheet"};
 
 const gridX = 8;