Gap 2188 fix copy for document upload

[paul-lawlor-tco]

Description

GAP-2188 (https://technologyprogramme.atlassian.net/browse/GAP-2188)

Summary of the changes and the related issue. List any dependencies that are required for this change:

Guidance was inconsistent between applicant and admin view for document upload selection. Content for grant admins was changed to be - "Allows files that are .DOC, .DOCX, .ODT, .PDF, .XLS, .XLSX or .ZIP"

Type of change

Please check the relevant options.

• Bug fix (non-breaking change which fixes an issue).
• New feature (non-breaking change which adds functionality).
• Breaking change (fix or feature that would cause existing functionality to not work as expected).
• This change requires a documentation update.

How Has This Been Tested?

Please describe the tests that you ran to verify your changes:

• Unit Test

• Integration Test (if applicable)

• End to End Test (if applicable)

Screenshots (if appropriate):

Document Upload selection

Document Upload preview

Please attach screenshots of the change if it is a UI change:
Screenshot attached which shows the new text added for document upload description when being viewed by admins.

Checklist:

• If I have listed depedenencies above, I have ensured that they are present in the target branch.
• I have performed a self-review of my code.
• I have commented my code in hard-to-understand areas.
• I have made corresponding changes to the documentation where applicable.
• I have ran cypress tests and they all pass locally.