'shiny' module server-side UI generator for the animaltracker app's basic dropdown selections.
staticPicker(
input,
output,
session,
selected_ani,
text,
choices,
min_selected,
max_selected
)
'shiny' server input, automatically populated
'shiny' server output, automatically populated
'shiny' server session, automatically populated
selected animals from animaltracker app input
title for picker
vector of possible choices for picker
index of lowest selected value in choices
index of highest selected value in choices
'shiny' renderUI object for dropdown selection