feat: add filetypes to upload

[mfts]

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[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
papermark	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Sep 17, 2024 3:55pm

[what-the-diff]

PR Summary

• Enhanced File Upload Capacity: The maximum file size that can be uploaded for various types of files has been increased from 30 MB to 40 MB, offering users more flexibility.
• Adjusted Plan Specific Uploads: We have introduced a new differentiation in the file types that users can upload based on the plan they are on (free or trial) which will help us offer more specialized services.
• Extended Range of File Types for Paid Plans: We have expanded the types of files that can be uploaded by users on the paid plans, including files like Powerpoint presentations (.ppt), Open Document Text files (.odt), and more. At the same time, these extended file types are limited only for the paid members, maintaining exclusivity.
• Addition of 'Free Plan' and 'Trial' Identification: To streamline the user experience and the logic behind file upload limitations, we've introduced two new identification variables: isFreePlan and isTrial. This brings in more clarity and allows efficient management of user plan interfaces.