fix(theme/Heading): flip lineHeight's rendered to match DS

Author: TylerAPfledderer

src/@chakra-ui/gatsby-plugin/components/Heading.ts

@@ -5,10 +5,10 @@ const { sizes: defaultSizes } = headingDefaultTheme
 
 const lineHeightScale = {
   "4xl": "6xs",
-  "3xl": ["5xs", null, "6xs"],
-  "2xl": ["5xs", null, "4xs"],
-  xl: ["3xs", null, "2xs"],
-  lg: ["3xs", null, "2xs"],
+  "3xl": ["6xs", null, "5xs"],
+  "2xl": ["4xs", null, "5xs"],
+  xl: ["2xs", null, "4xs"],
+  lg: ["2xs", null, "3xs"],
   md: "xs",
   sm: "base",
   xs: "base",