feat(fw-textarea): added maxRows to fw-textarea for dynamic Resizing

[kunal-singhh]

Checklist:

feat(fw-textarea): added maxRows to fw-textarea for dynamic Resizing.

• [x] My code follows the code style of this project.
• [x] My change requires a change to the documentation.
• [x] I have updated the documentation accordingly.
• [x] I have added tests to cover my changes.
• [x] All new and existing tests passed.
• [x] My commits have standard messages as mentioned in Contributing Guidelines

How Has This Been Tested?

• Tested on local host with both variations with rows and max-rows and with just max-rows prop
  • Eg: When rows=4 and max-rows=10, the default row size will be 4 and as the user interacts with textarea the row size will increase/decrease as the per the number of lines in the content.
  • if no rows is set the default row size is considered as 2 which corresponds to the actual row size of the textarea when no rows prop is passed
  • We also have an optional prop called max-rows-debounce-timer which can debounce the events callback to improve performance. Its default value is 200ms

[arvindanta]

LGTM. Thanks for the PR @kunal-singhh