add: iteration 1 finished

Finished simple calculator iteration

shared/ButtonGroup.ts

@@ -0,0 +1,5 @@
+export type Button = {
+  label : string
+  icon : string
+  active ?: boolean
+}

shared/Card.ts

@@ -5,4 +5,7 @@ export type Card = {
   roles: number
   sheets: number
   layers: number
+  ppr: number
+  pps: number
+  ppl: number
 }