[Neue] Buttons (#5406)

* Re-align button sizing

(cherry picked from commit bcec243bb59dfe468313d98ba61f464d9750feec)

* Use large, small, tiny

(cherry picked from commit 1dc333c2993ab7f2e0ac750c0670dcec9a7069d0)

* Tweaks

src/components/dialogs/MutedWords.tsx

@@ -319,7 +319,7 @@ function MutedWordsInner() {
             <Button
               disabled={isPending || !field}
               label={_(msg`Add mute word for configured settings`)}
-              size="medium"
+              size="large"
               color="primary"
               variant="solid"
               style={[]}