Merge pull request #2951 from HyphaApp/fix/file-type-validation

hypha/apply/funds/files.py

...ply/funds/templates/funds/applicationsubmission_form.html

...projects/templates/application_projects/invoice_form.html

...templates/application_projects/project_approval_form.html

.../projects/templates/application_projects/report_form.html

.../projects/templates/application_projects/vendor_form.html

...ojects/templates/application_projects/vendor_success.html

hypha/static_src/src/javascript/apply/list-input-files.js

requirements.txt