fix(releases): Fix finalize button size (#90716)

| | Old Style | Chonk Style |
| --- | --- | --- |
| Before | <img width="205" alt="before - old style"
src="https://github.com/user-attachments/assets/b6f577f5-3b16-472e-9a05-08f061786406"
/> | <img width="196" alt="before - chonk"
src="https://github.com/user-attachments/assets/b0ffd68e-cf59-4b5c-b5d5-554d0b20602b"
/>
| After | <img width="202" alt="after - old style"
src="https://github.com/user-attachments/assets/8ded1922-8d3d-443a-8f69-41c6750db84e"
/> | <img width="268" alt="after - chonk"
src="https://github.com/user-attachments/assets/dff3cdf5-70dc-451b-9cfb-4d2bfd3ab929"
/>

Fixes #90650
Followup to #90648

Author: ryan953

static/app/views/releases/detail/overview/sidebar/projectReleaseDetails.tsx

@@ -1,4 +1,3 @@
-import {useTheme} from '@emotion/react';
 import styled from '@emotion/styled';
 import moment from 'moment-timezone';
 
@@ -30,7 +29,6 @@ type Props = {
 };
 
 function ProjectReleaseDetails({release, releaseMeta, projectSlug}: Props) {
-  const theme = useTheme();
   const organization = useOrganization();
   const orgSlug = organization.slug;
 
@@ -94,8 +92,8 @@ function ProjectReleaseDetails({release, releaseMeta, projectSlug}: Props) {
                         )
                     )}
                   >
-                    <Button
-                      size={theme.isChonk ? 'zero' : 'xs'}
+                    <FinalizeButton
+                      size="zero"
                       onClick={() => {
                         finalizeRelease.mutate([release], {
                           onSettled() {
@@ -105,7 +103,7 @@ function ProjectReleaseDetails({release, releaseMeta, projectSlug}: Props) {
                       }}
                     >
                       {t('Finalize')}
-                    </Button>
+                    </FinalizeButton>
                   </Tooltip>
                 </ButtonContainer>
               )
@@ -182,4 +180,9 @@ const ButtonContainer = styled('div')`
   }
 `;
 
+const FinalizeButton = styled(Button)`
+  font-size: ${p => p.theme.fontSizeSmall};
+  padding-inline: ${space(0.5)};
+`;
+
 export default ProjectReleaseDetails;