Can I change the output of a single key in all modes in neovim?

I use a swedish keyboard and want to remap the å, ä, ö characters to more useful keys while programming. For example, I want ö to output [. How can I achieve this in all modes in neovim?

I have tried this in a lua file:

local modes = {'n', 'i', 'c', 'v', 's', 'x', 'o', 't'}-- Remap 'ö' to '[' in all modesfor _, mode in ipairs(modes) do  vim.keymap.set(mode, 'ö', '[', { remap = true, silent = true })end

but it does not work for "f" (finding the [-character) and command mode.