Describe the solution you'd like
Make autofocus of the search field optional

Additional context
I often open the inventory to check on various things (ex how much space I have spare atm, or how much of an item I'm carrying), and REI makes it difficult to do this by focusing the search field every time I open the inventory, thus eating the second "e" keypress. An option to make focusing of the search field manual, ie by keybind or click alone, would be useful to myself and players like me.