feat(ui) : dimensions par défaut du bouton 180x38

MalioButton : w-[180px] / h-[38px] (étaient w-[200px] / h-[40px])

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>

app/components/malio/button/Button.test.ts

@@ -162,8 +162,8 @@ describe('MalioButton', () => {
   it('applies correct dimensions', () => {
     const wrapper = mountComponent()
 
-    expect(wrapper.get('button').classes()).toContain('w-[200px]')
-    expect(wrapper.get('button').classes()).toContain('h-[40px]')
+    expect(wrapper.get('button').classes()).toContain('w-[180px]')
+    expect(wrapper.get('button').classes()).toContain('h-[38px]')
   })
 
   it('applies font styles', () => {