[Bug][Workspace] "Save Changes" button not disabled when name or description exceeds maximum length

[wanglam]

Describe the bug

When editing a workspace's name or description, the "Save Changes" button should be disabled if the entered text exceeds the maximum allowed length.

To Reproduce
Steps to reproduce the behavior:

1. Go to an existing workspace settings page
2. Click the "Edit" button
3. Enter a workspace name or description that exceeds the maximum allowed length
4. The "Save Changes" button remains enabled, allowing the invalid input to be saved

Expected behavior
The "Save Changes" button should be disabled when the workspace name or description exceeds the maximum allowed length, preventing users from saving invalid input.

OpenSearch Version
N/A

Dashboards Version
Latest main and 2.x branch

Plugins
N/A

Screenshots

Host/Environment (please complete the following information):
N/A

Additional context
#4944

[CCongWang]

Thanks @wanglam for providing fix