Issues to consider

[duncandewhurst]

Noting a bunch of issues from cove-ocds that we should consider for this project:

• Improve feedback on invalid dates open-contracting/cove-ocds#145
• Mention range of accepted file sizes open-contracting/cove-ocds#136
• List fields that are present/missing compared to the schema  open-contracting/cove-ocds#71
• "Array has non-unique elements" error is missing examples open-contracting/cove-ocds#89
• "First 3 examples" should not have ambiguous types open-contracting/cove-ocds#56
• Conversion errors: 'you may have a duplicate identifier' only specifies one of the sheets the duplicate appears in open-contracting/cove-ocds#129
• Use a neutral colour where feedback isn't positive or negative  open-contracting/cove-ocds#128
• Closed codelist errors appear in both 'validation errors' and 'codelist validation errors' open-contracting/lib-cove-ocds#115
• Add schema descriptions for required fields open-contracting/cove-ocds#105
• Add links to the docs in OCDS schema validation messages open-contracting/cove-ocds#103

From cove-oc4ids:

• Results page UI improvements open-contracting/cove-oc4ids#20
• Report additional codes in fields which use open codelists open-contracting/cove-oc4ids#47