nvim/plugin-confs/telescope.lua

require('telescope').setup{
  defaults = {
    -- Default configuration for telescope goes here:
    -- config_key = value,
    layout_strategy = 'flex',
    width = 0.9,
    wrap_results = true,
    preview = {
        border = true,
        borderchars = { '─', '│', '─', '│', '╭', '╮', '╯', '╰' },
        title = true,
        dynamic_preview_title = true,
        treesitter = true,
    },
    mappings = {
      i = {
        -- map actions.which_key to <C-h> (default: <C-/>)
        -- actions.which_key shows the mappings for your picker,
        -- e.g. git_{create, delete, ...}_branch for the git_branches picker
        ["<C-h>"] = "which_key"
      }
    },
    file_ignore_patterns = { "node_modules", "env", "__pycache__" }
  },
  pickers = {
    -- Default configuration for builtin pickers goes here:
    -- picker_name = {
    --   picker_config_key = value,
    --   ...
    -- }
    -- Now the picker_config_key will be applied every time you call this
    -- builtin picker
    find_files = {
        -- theme = "dropdown"
    }
  },
  extensions = {
    -- Your extension configuration goes here:
    -- extension_name = {
    --   extension_config_key = value,
    -- }
    -- please take a look at the readme of the extension you want to configure
  }
}