Refactor/mixed

[ikeyan]

• simplify new Date().getTime() as Date.now() for readability
• Better typing of jsonpath functions
  • function jom: renamed as jm and removed optional-ness
    • because jom was always used this way: jom(...) ?? []
  • function jm, jo, j: improved typings
  • MuseError.name: added override keyword
    • because of TS4114 from deno check
  • function get_language_map: add runtime type check of match.value
  • fetch_map[].paths[]: replace [0] with .0 to reduce notation fluctuation
• chore: uninstall lodash-es (unused)
• Fix set_options and refactor setup.ts
  • Refactoring
    • Change some as to satisfies
    • Less code for better readability
  • Fix set_options
    • Should ignore undefined options
• Refactor auth.ts
  • Change some as to satisfies
  • Less code for better readability
  • await before return
    • without await, error.stack from promises does not contain the actual origin line
  • Assign faithful type to the response jsons