Fichub-cli

Changes
- Replaced AppDirs with platformdirs

- Replaced `mkdir` with `makedirs` to recursively create
directories for app directory and output dir

New Feature Update:
CLI auto-version checker which notifies the user if the currently
installed version is outdated.

Changes

- Improving logging

- Added app directory to store config files

- Bugfix: Dedup input lists to prevent duplicate urls
- If duplicated urls are given as input, the CLI will only append once to the `input_list`

Changes

- Refactored code to make it compatible with the plugins

- Moved `--get-urls` option to the `fichub-cli-metadata` plugin and renamed it
as `--fetch-urls`
- It also saves the output as txt files in the current directory as
`ao3_works_list.txt` and `ao3_series_list.txt`

- Added `output.log` for downloads tracking
- It appends the URL to the `output.log` and whenever the CLI is restarted,
it checks for pre-existing `output.log` and compares it with input URLs and skips
if there are conflicts.

- Logging to file only when using `--log`
- Loguru was logging was not logging anything to file when using
`--log` unless `--debug` was being used. Now it will only log
to file if `--log` is used

- Changed License from MIT to Apache-2.0