FORMS-14980 : Addng additional file attachment properties

[lovelymandal16]

[Universal editor] [Component - File Attachment] Missing fields in the property dialog :
Button Text
Drag and Drop Text
Always show short description

Fix #FORMS-14980

Test URLs:
Before: https://main--aem-boilerplate-forms--adobe-rnd.hlx.live/
After: https://fileattachmentproperties--aem-boilerplate-forms--adobe-rnd.hlx.page/

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Commits

• 354660b ✅ (latest)
• e42615c ✅

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[nit23uec]

we should avoid adding always show short description functionality unless it's required by customers. and then we should add it for all components

[nit23uec]

always show short desc should be avoided until sufficient no. of customer use cases