アイコンサイズにxsを追加 (#265)

Author: penicillin0

src/components/Icon/Icon.stories.tsx

@@ -68,6 +68,10 @@ export const Overview = () => (
       size: sm (12px)
     </Typography>
     {renderIcons({ size: "sm" })}
+    <Typography weight="bold" size="xxl">
+      size: xs (10px)
+    </Typography>
+    {renderIcons({ size: "xs" })}
   </Container>
 );
 

src/components/Icon/Icon.tsx

@@ -129,8 +129,9 @@ export type IconName =
 
 type IconType = "fill" | "line";
 type IconColor = IconType | "active" | string;
-type IconSize = "sm" | "md" | "lg";
+type IconSize = "xs" | "sm" | "md" | "lg";
 export const iconSize: { [key in IconSize]: number } = {
+  xs: 10,
   sm: 12,
   md: 18,
   lg: 24,