Prevent blank workouts on new set

Closes #46

HomePage.tsx

@@ -13,7 +13,7 @@ export type HomePageParams = {
   Sets: {};
   EditSet: {
     set: Set;
-    workouts?: string[];
+    workouts: string[];
   };
 };
 

SetForm.tsx

@@ -13,7 +13,7 @@ export default function SetForm({
 }: {
   set: Set;
   save: (set: Set) => void;
-  workouts?: string[];
+  workouts: string[];
 }) {
   const [name, setName] = useState(set.name);
   const [reps, setReps] = useState(set.reps.toString());
@@ -91,7 +91,7 @@ export default function SetForm({
             innerRef={unitRef}
           />
         )}
-        {workouts && (
+        {workouts.length > 0 && (
           <MassiveInput
             label="Todays workout"
             value={workouts?.join(', ')}

SetItem.tsx

@@ -35,7 +35,7 @@ export default function SetItem({
     const set: Set = {...item};
     delete set.id;
     setShowMenu(false);
-    navigation.navigate('EditSet', {set});
+    navigation.navigate('EditSet', {set, workouts: []});
   }, [navigation, item]);
 
   const longPress = useCallback(
@@ -59,7 +59,9 @@ export default function SetItem({
   return (
     <>
       <List.Item
-        onPress={() => navigation.navigate('EditSet', {set: item})}
+        onPress={() =>
+          navigation.navigate('EditSet', {set: item, workouts: []})
+        }
         title={item.name}
         description={`${item.reps} x ${item.weight}${item.unit || 'kg'}`}
         onLongPress={longPress}