feat: add `path_display` support with a default value

[qw457812]

• Add default path_display to:
  1. Replace home dir with ~ to make path shorter.
  2. Truncate long path.
  3. Filename highlighting.
• Add show_score opt, default to true.
• Add previewer opt, uses terminal tree previewer via eza/tree, can be disabled by user via previewer = false.

Copied some codes from gczcn's fork, telescope-z.nvim and petobens's dotfiles.