Merge branch '513094-update-file-size-logic' into 'master'

Ensures large files with a rich viewer (e.g. Jupyter Notebooks) render correctly

See merge request https://gitlab.com/gitlab-org/gitlab/-/merge_requests/180718



Merged-by: Paulina Sedlak-Jakubowska <psedlak-jakubowska@gitlab.com>
Approved-by: Chaoyue Zhao <czhao@gitlab.com>
Approved-by: Paulina Sedlak-Jakubowska <psedlak-jakubowska@gitlab.com>
Reviewed-by: Jacques Erasmus <jerasmus@gitlab.com>
Reviewed-by: Chaoyue Zhao <czhao@gitlab.com>
Reviewed-by: GitLab Duo <gitlab-duo@gitlab.com>
Co-authored-by: Jacques <jerasmus@gitlab.com>