fix: clarify restore project disk sizing behavior (#35607)

* fix: clarify restore project disk sizing behavior

* add disk can only be expanded

apps/studio/components/interfaces/Database/Backups/RestoreToNewProject/AdditionalMonthlySpend.tsx

@@ -8,8 +8,10 @@ export const AdditionalMonthlySpend = ({
   return (
     <div className="text-sm text-foreground-lighter border-t p-5">
       <p>
-        The new project will have the same compute size and disk size as this project. You will be
-        able to update the compute size and disk size after the new project is created in{' '}
+        The new project will start with the same compute size as your current project, but the disk
+        size will be slightly larger (1.25×) to ensure the restore completes successfully. You will
+        be able to update the compute size and increase the disk size after the new project is
+        created in{' '}
         <span className="font-mono text-xs tracking-tighter text-foreground-light">
           Project Settings &gt; Compute and Disk
         </span>