[Neue] Buttons (#5406)

* Re-align button sizing

(cherry picked from commit bcec243bb59dfe468313d98ba61f464d9750feec)

* Use large, small, tiny

(cherry picked from commit 1dc333c2993ab7f2e0ac750c0670dcec9a7069d0)

* Tweaks

src/screens/StarterPack/StarterPackLandingScreen.tsx

@@ -308,7 +308,7 @@ function LandingScreenLoaded({
             label={_(msg`Signup without a starter pack`)}
             variant="solid"
             color="secondary"
-            size="medium"
+            size="large"
             style={[a.py_lg]}
             onPress={onJoinWithoutPress}>
             <ButtonText>

src/screens/StarterPack/StarterPackScreen.tsx

@@ -449,7 +449,7 @@ function Header({
               }}
               variant="solid"
               color="primary"
-              size="medium">
+              size="large">
               <ButtonText style={[a.text_lg]}>
                 <Trans>Join Bluesky</Trans>
               </ButtonText>
@@ -645,7 +645,7 @@ function OverflowMenu({
           <Button
             variant="solid"
             color="negative"
-            size={gtMobile ? 'small' : 'medium'}
+            size={gtMobile ? 'small' : 'large'}
             label={_(msg`Yes, delete this starter pack`)}
             onPress={onDeleteStarterPack}>
             <ButtonText>

src/screens/StarterPack/Wizard/index.tsx

@@ -358,7 +358,7 @@ function Container({children}: {children: React.ReactNode}) {
             label={_(msg`Next`)}
             variant="solid"
             color="primary"
-            size="medium"
+            size="large"
             style={[a.mx_xl, a.mb_lg, {marginTop: 35}]}
             onPress={() => dispatch({type: 'Next'})}>
             <ButtonText>