[Bug]: Maximum Doc size is hardcoded

[zzecool]

Is there an existing issue for the same bug?

• [X] I have checked the existing issues.

Branch name

main

Commit ID

uknown

Other environment information

Docker

Actual behavior

The maximum Doc size is not only defined in nginx.conf but it is also hardcoded in the source as 128MB

Expected behavior

Maximum Doc size should either entered in configuration over UI and - or dictated within .env

Steps to reproduce

Try to upload a Doc bigger than 128MB

Additional information

No response