Update error handling and UI design across multiple files

Enhanced error handling in documentation and blog pages, to ensure smoother running and user experience. This also includes additional UI updates related to font selection, layout arrangement, and interactive elements on error pages, marketing pages, and general site navigation components. Moreover, a "contact us" feature has been added to error pages to help users seek assistance more conveniently.

apps/web/app/(marketing)/page.tsx

@@ -98,7 +98,9 @@ function Home() {
 
                   <Heading
                     level={3}
-                    className={'font-sans font-normal text-muted-foreground tracking-normal'}
+                    className={
+                      'font-sans font-normal tracking-normal text-muted-foreground'
+                    }
                   >
                     Secure and Easy-to-Use Authentication for Your SaaS Website
                     and API
@@ -147,7 +149,9 @@ function Home() {
 
                   <Heading
                     level={3}
-                    className={'font-sans font-normal text-muted-foreground tracking-normal'}
+                    className={
+                      'font-sans font-normal tracking-normal text-muted-foreground'
+                    }
                   >
                     A fantastic dashboard to manage your SaaS business
                   </Heading>
@@ -174,7 +178,9 @@ function Home() {
 
                   <Heading
                     level={3}
-                    className={'font-sans font-normal text-muted-foreground tracking-normal'}
+                    className={
+                      'font-sans font-normal tracking-normal text-muted-foreground'
+                    }
                   >
                     A powerful billing system for your SaaS business
                   </Heading>
@@ -300,7 +306,7 @@ function MainCallToActionButton() {
   return (
     <div className={'flex space-x-4'}>
       <Button
-        className={'h-12 px-4 rounded-xl text-base font-semibold'}
+        className={'h-12 rounded-xl px-4 text-base font-semibold'}
         asChild
       >
         <Link href={'/auth/sign-up'}>
@@ -321,7 +327,7 @@ function MainCallToActionButton() {
 
       <Button
         variant={'link'}
-        className={'h-12 px-4 rounded-xl text-base font-semibold'}
+        className={'h-12 rounded-xl px-4 text-base font-semibold'}
         asChild
       >
         <Link href={'/contact'}>