[ic-time-selector] update selected value when typing in column

Nobody has claimed this yet.

### Summary
It was suggested that an improvement for time selector would be selecting and scrolling to a time when that number is typed into the column e.g. typing 5 in the hour column would scroll to and select 5.

### 💬 Description
The selecting and scrolling to numbers functionality will have to work for single and double digit numbers (and maybe even triple digit numbers when milliseconds are introduced).

We'll have to work out a suitable wait time where 2 numbers typed after each other are separate numbers and not a double digit number e.g. 5 then 8 in the minute column could be 58 or it could be that they selected 5 and then changed their mind and wanted to select 8.

### 💰 Use value
It would make moving through the numbers easier for keyboard users.

### 📝 Acceptance Criteria
*Given* the time selector has a column focused
*When* a number is typed
*And* it's a valid number e.g. not 72 in the minute column
*Then* that number should be scrolled into view and selected.

Start by locating the ic-time-selector component and its existing keyboard, column focus, scrolling, and selection behavior. Work through how valid single- and multi-digit input should be distinguished, including the wait time described in the issue. Done means valid typed values scroll into view and become selected, while invalid values such as 72 in the minute column do not.

Written by the indexing model from the issue text.