feat: adiciona botao e estiliza

src/pages/packages/PackagesPage.vue

@@ -7,7 +7,7 @@
         color="primary"
         icon="mdi-plus"
         unelevated
-        style="border-radius: 8px"
+        style="border-radius: 8px; height: 40px; width: 40px"
         @click="openAddDialog"
       />
     </div>