[EuiComboBox] Unable to properly highlight input text with mouse

[wenchonglee]

Hey,

I recently noticed that if you were to mouse click and drag the text you just entered, you will be unable to overwrite that text by typing over it.

To be more specific:

1. Type test
2. Without clicking or pressing enter, drag text test
3. Type abcd
4. Notice test remains and no text can be overwritten

The codesandbox found in the "Custom options only, with validation" section can be used to replicate this problem.

You are able to overwrite the text if you used other means of highlighting the text, i.e. using crtl-a or double clicking the text