[Issue 1258] Add local libs and fix a11y issues

[acouch]

Summary

Fixes #1258

Time to review: 10 mins

Changes proposed

1. Pull the CSS and JS files from a CDN to the API container
2. Fix two a11y issues:

• Color contrast not strong enough for multiple elements
• "Servers" select flagged as non-compliant so it was removed

Note about files:

Three files were moved to the API from the following sources:

• https://unpkg.com/swagger-ui-dist@5.11.8/swagger-ui-bundle.js
• https://unpkg.com/swagger-ui-dist@5.11.8/swagger-ui-standalone-preset.js
• https://cdnjs.cloudflare.com/ajax/libs/swagger-ui/4.11.1/swagger-ui.min.css

The first two are unchanged. The css file had the following added in order to fix the contrast ratio:

.swagger-ui .info .title small {
    background-color: black;
}
.swagger-ui .opblock.opblock-post .opblock-summary-method,
.swagger-ui .info .title small.version-stamp {
    background-color: #48600d;
}
.swagger-ui .opblock.opblock-get .opblock-summary-method {
    background-color: #001b44;
}
.swagger-ui .json-schema-2020-12-expand-deep-button,
.swagger-ui .info a {
    color: darkblue;
    text-decoration: underline;
}
.swagger-ui .btn.authorize {
    color: #48600d;
    border-color: #48600d;
}
.swagger-ui .btn.authorize svg {
    fill: #48600d;
}

This is a temporary solution as we will move the API docs before the Search UI is public.

Context for reviewers

None of the OpenAPI doc generators seem to be 508 compliant out of the box 😢

Additional information

Before:

After:

[chouinar]

Will this break the ability to use OpenAPI? The server info is currently automatically set for us, but if we manually set it, that might break querying entirely through the UI.

[acouch]

I tested that it doesn't:

[acouch]

I'm going to review the API Flask code to make sure there aren't side effects for this.

[chouinar]

Its not going to be in APIFlask, probably something in apispec. We probably can't tell if this will be an issue until it is in dev as the server logic is going to be a lot simpler locally

[chouinar]

From the summary This is a temporary solution as we will move the API docs before the Search UI is public. - What do you mean by this?

[acouch]

@chouinar I updated the description to link to #1336