[sql-lab] fix react warnings in dev

[ascott]

fix react warnings in sql-editor/search, makes it easier to see real errors.

• Failed prop type: VisualizeModal: prop type onHide is invalid;
• Failed prop type: Required prop title was not specified in DropdownButton
• Failed prop type: The prop id is required to make Tabs accessible for users of assistive technologies such as screen readers.
• Failed prop type: In order to properly initialize Tabs in a way that is accessible to assistive technologies (such as screen readers) an id or a generateChildId prop to TabContainer is required
• Each child in an array or iterator should have a unique "key" prop. Check the render method of SqlEditorTopToolbar. See https://fb.me/react-warning-keys for more information.
• Each child in an array or iterator should have a unique "key" prop. Check the render method of TableElement. See https://fb.me/react-warning-keys for more information.

@bkyryliuk @mistercrunch @vera-liu

[bkyryliuk]

Thanks for the fixes! looks good to me. Please wait till @mistercrunch approval, I'm not sure what is the approach we should follow to generate the components ids.

[mistercrunch]

oh nice, was on my TODO list, thanks for knocking those out!
LGTM