Missing button labels in entry flow

[emclaren]

Received feedback from a researcher who did an analysis of Hubs using a screenreader that there are labels missing from buttons in the entry flow for Hubs.

From their report: -After clicking “Allow” in the prompt (Figure 11), the microphone is enabled, indicated by a green button (Figure 12). ​None of those buttons is labeled.

• Clicking “Next” open the audio selection interface (Figure 13). ​Buttons are not labeled.

┆Issue is synchronized with this Jira Task