Tooltip for Developer settings

[dfberry]

Purpose

@pamelafox mentioned customers asked about retrieval mode. It would be nice to have the answer in a tooltip closer to the user's needs than a doc.

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Does this introduce a breaking change?

[ ] Yes
[x ] No

Pull Request Type

What kind of change does this Pull Request introduce?

[ ] Bugfix
[x ] Feature
[ ] Code style update (formatting, local variables)
[ ] Refactoring (no functional changes, no api changes)
[ ] Documentation content changes
[ ] Other... Please describe:

How to Test

• Get the code

git clone [repo-address]
cd [repo-name]
git checkout [branch-name]
npm install
npm start

• Test the code
  Open developer settings.

What to Check

Hover over any of the settings.

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Other Information