feat: update heroicons to version 24 and refactor button variants for consistency

app/layouts/news/footer-newsletter.tsx

@@ -34,7 +34,7 @@ export const FooterNewsletter = () => {
           />
           <Button
             type="submit"
-            variant="newsPrimaryOutline"
+            variant="primaryOutline"
             size="block"
           >
             Subscribe

app/layouts/news/header-menu-mobile.tsx

@@ -70,7 +70,7 @@ export const HeaderMenuMobile = (properties: THeaderMenuMobile) => {
                   action="/actions/logout"
                 >
                   <Button
-                    variant="newsSecondary"
+                    variant="outline"
                     className="w-full px-[35px] py-3 text-center sm:hidden"
                     type="submit"
                   >
@@ -79,7 +79,7 @@ export const HeaderMenuMobile = (properties: THeaderMenuMobile) => {
                 </fetcher.Form>
               ) : (
                 <Button
-                  variant="newsSecondary"
+                  variant="outline"
                   className="w-full px-[35px] py-3 text-center sm:hidden"
                   onClick={() => {
                     setIsMenuOpen(false)

app/layouts/news/header-top.tsx

@@ -33,7 +33,7 @@ export const HeaderTop = () => {
             action="/actions/logout"
           >
             <Button
-              variant="newsSecondary"
+              variant="outline"
               className="hidden sm:flex"
               type="submit"
               disabled={fetcher.state !== 'idle'}
@@ -44,7 +44,7 @@ export const HeaderTop = () => {
           </fetcher.Form>
         ) : (
           <Button
-            variant="newsSecondary"
+            variant="outline"
             className="hidden sm:block"
             onClick={() => setIsLoginOpen(true)}
           >