Form Components: Placeholder accessibility issue

[nmerget]

Currently, there is an accessibility issue with our placeholders for all form components. We need to discuss how to handle them properly.

See this as references:

• https://www.deque.com/blog/accessible-forms-the-problem-with-placeholders/
• https://accessibleweb.com/question-answer/does-placeholder-text-need-to-meet-color-contrast-requirements/#:~:text=Answer,minimum%20contrast%20success%20criterion%20(1.4.