fix: SelectInput component can close before selecting input

[dib542]

All instances of the SelectInput component can sometimes close before confirming the selection of a new option. This is very frustrating because when it happens it makes the SelectInput component unusable and the value in the form cannot be changed from the default selection.

The instances include:

• The Orderbook page "order type" selector and "order date" selector
• The Create New Position page "fee tier" selector

[dib542]

this is also tracked in: https://hadronlabs.atlassian.net/browse/UI-434