After the heading for the auto-indexing jobs page, the user is presented with a bar from which they can paste a "git rev-like" string with a button for enqueuing an auto-indexing job for that rev-like.
The screen-reader announces the bar with "git revlike" ("revlike" pronounced more like "rivlike"), followed by the text field announced as "head, insertion at end of text, git revlike, edit text". This doesn't indicate the purpose of the text field, and the purpose of the button is at a stretch somewhat implied.
The purpose of the entire bar should be explained outside of a vaguely correlated text element, text field and button.
Test Plan
For js context, you can change the value of codeIntelAutoIndexingEnabled on client/web/dev/utils/create-js-context.ts and rerun sg start web-standalone
Run the screen reader and hear it announce Provide a Git revspec to enqueue a new auto-indexing job while on the text label
