Submit button on issue creation sometimes not accessible

[seehorne]

Describe the bug
Sometimes, the submit/send button is not available on ios (likely while using Voiceover, have not encountered it without screen reader, but this relationship is not firm). Probable that this can occur in Android too, but hasn't been seen yet. This is not deterministic, but seems associated with longer inputs.

To Reproduce
Steps to reproduce the behavior:

1. Open create new tool
2. Type something really long in the box
3. Try to submit the issue

Expected behavior
Ideally, tapping/selecting outside the keyboard/outside the textbox should close the keyboard. But adding a done button that explicitly closes the keyboard is also a viable fix, and maybe more reliable