Issue 4 add cli support (Sourcery refactored)

[sourcery-ai]

Pull Request #5 refactored by Sourcery.

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To manually merge these changes, make sure you're on the issue-4-Add_CLI_support branch, then run:

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[pep8speaks]

Hello @sourcery-ai[bot]! Thanks for opening this PR. We checked the lines you've touched for PEP 8 issues, and found:

• In the file src/__main__.py:

Line 107:22: E231 missing whitespace after ':'
Line 107:22: E701 multiple statements on one line (colon)
Line 107:23: E225 missing whitespace around operator

[sourcery-ai]

Function UI.browse_output_dir refactored with the following changes:

• Use named expression to simplify assignment and conditional (use-named-expression)

[sourcery-ai]

Sourcery Code Quality Report

❌  Merging this PR will decrease code quality in the affected files by 0.32%.

Quality metrics	Before	After	Change
Complexity	0.80 ⭐	0.80 ⭐	0.00
Method Length	53.55 ⭐	53.45 ⭐	-0.10 👍
Working memory	8.49 🙂	8.58 🙂	0.09 👎
Quality	73.19% 🙂	72.87% 🙂	-0.32% 👎

Other metrics	Before	After	Change
Lines	152	151	-1

Changed files	Quality Before	Quality After	Quality Change
src/main.py	73.19% 🙂	72.87% 🙂	-0.32% 👎

Here are some functions in these files that still need a tune-up:

File	Function	Complexity	Length	Working Memory	Quality	Recommendation
src/main.py	UI.__init__	1 ⭐	242 ⛔	15 😞	46.82% 😞	Try splitting into smaller methods. Extract out complex expressions

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