[UI Feature] Validate input types in LaunchForm

[hank-stripe]

Motivation: Why do you think this is important?

Currently, the "Launch" button remains enabled, and submitting the form does nothing, when attempting to launch a workflow/task with an input that does not conform to the specified type. This is a confusing experience.

Goal: What should the final outcome look like, ideally?

When a required input is filled with a value that is invalid as per the specified type, then:

1. The "Launch" button should be disabled;
2. When the focus is not on the input field, a validation error message should be displayed above/below the input field.

Propose: Link/Inline OR Additional context

No response

Are you sure this issue hasn't been raised already?

• Yes

Have you read the Code of Conduct?

• Yes

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