Toxic Exposure: Add date range validation

Issue Description

Add date range validation for all the TE details pages, including gulf war 1990, gulf war 2001, herbicide, and additional exposure details pages.

Add validation to require start date to come before end date. Currently there is no validation across dates so this can happen (see image below)
Consider validation to ensure dates are within an expected range, e.g. "Service locations after August 2, 1990" #73262
TBD: Consider any other date validations that should be done, e.g. should we check date ranges against the Veteran's service history?

Acceptance Criteria

Error displays when both start date and end date are present and start date comes after end date (TBD: get error content from design)

Front end tasks

Ensure the page is styled according to design spec.
Ensure the back end data from API is displayed in local and review instance
Ensure unit tests are available.
Ensure your code changes are covered by E2E tests
Run axe checks using the Chrome or Firefox browser plugin
Test for color contrast and color blindness issues
Zoom layouts to 400% at 1280px width
Test with 1 or 2 screen readers
Navigate using the keyboard only

Acceptance Criteria

[ ] Designer comments on this issue to approve page styling
[ ] Unit tests pass
[ ] E2E tests cover current code and regression
[ ] End-to-end tests show 0 violations.
[ ] The data returned matches API response (for given user or scenario)
[ ] All axe checks pass
[ ] All color contrast checks pass
[ ] All zoom testing passes
[ ] All keyboard checks pass
[ ] All screenreader checks pass

Appendix

Ensure your code changes are covered by E2E tests (expand)

- Add E2E tests if none exist for this addition/change. - Update existing E2E tests if this code will change functionality. - Include axe checks, including hidden content

Run axe checks using the Chrome or Firefox browser plugin (expand)

- Ensure no heading levels are skipped. - Ensure all buttons and labeled inputs use semantic HTML elements. - Ensure all buttons, labeled elements and images are identified using HTML semantic markers or ARIA roles. - Ensure form fields have clearly defined boundaries or outlines. - Ensure form fields do not use placeholder text. - Ensure form fields have highly visible and specific error states.

Test for color contrast and color blindness issues (expand)

- All text has appropriate contrast.

Zoom layouts to 400% at 1280px width (expand)

- Ensure readability and usability are supported when zoomed up to 400% at 1280px browser width - Ensure no content gets focused offscreen or is hidden from view.

Test with 1 or 2 screen readers (expand)

- Ensure the page includes a skip navigation link. - Ensure all links are properly descriptive. - Ensure screen reader users can hear the text equivalent for each image conveying information. - Ensure screen reader users can hear the text equivalent for each image button. - Ensure screen reader users can hear labels and instructions for inputs. - Ensure purely decorative images are not announced by the screenreader.

Navigate using the keyboard only (expand)

- Ensure all links (navigation, text and/or image), form controls and page functions can be reached with the tab key in a logical order. - Ensure all links (navigation, text and/or image), form controls and page functions can be triggered with the spacebar, enter key, or arrow keys. - Ensure all interactive elements can be reached with the tab key in a logical order - Ensure all interactive elements can be triggered with the spacebar, enter key, or arrow keys. - Ensure focus is always visible and appears in logical order. - Ensure each interactive element has visible focus state which appears in logical order.

How to configure this issue

[ ] Attached to a Milestone (when will this be completed?)
[ ] Attached to an Epic (what body of work is this a part of?)
[ ] Labeled with Team (product support, analytics-insights, operations, service-design, Console-Services, tools-fe)
[ ] Labeled with Practice Area (backend, frontend, devops, design, research, product, ia, qa, analytics, contact center, research, accessibility, content)
[ ] Labeled with Type (bug, request, discovery, documentation, etc.)

department-of-veterans-affairs / va.gov-team