refactor!: replace safe_ds with safeds

[lars-reimann]

Closes partially Safe-DS/Library#8.

Summary of Changes

• Rename safe_ds to safeds.
• Rename safe_ds_runner to safeds_runner.

[codecov]

Codecov Report

Merging #388 (ba49252) into main (f53ab8c) will increase coverage by 10.78%.
The diff coverage is 100.00%.

@@             Coverage Diff             @@
##             main     Safe-DS/DSL#388       +/-   ##
===========================================
+ Coverage   80.72%   91.51%   +10.78%     
===========================================
  Files         177       44      -133     
  Lines        6386     1119     -5267     
  Branches     1293        0     -1293     
===========================================
- Hits         5155     1024     -4131     
+ Misses        856       95      -761     
+ Partials      375        0      -375     

Impacted Files	Coverage Δ
Runtime/safe-ds/safeds/classification/__init__.py	100.00% <ø> (ø)
.../safe-ds/safeds/classification/metrics/__init__.py	100.00% <ø> (ø)
Runtime/safe-ds/safeds/data/__init__.py	100.00% <ø> (ø)
Runtime/safe-ds/safeds/data/_column_type.py	86.00% <ø> (ø)
Runtime/safe-ds/safeds/data/_imputer.py	97.87% <ø> (ø)
Runtime/safe-ds/safeds/data/_supervised_dataset.py	61.53% <ø> (ø)
Runtime/safe-ds/safeds/exceptions/__init__.py	100.00% <ø> (ø)
...time/safe-ds/safeds/exceptions/_data_exceptions.py	95.83% <ø> (ø)
.../safe-ds/safeds/exceptions/_learning_exceptions.py	84.61% <ø> (ø)
Runtime/safe-ds/safeds/plotting/__init__.py	100.00% <ø> (ø)
... and 167 more

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[github-actions]

🦙 MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ KOTLIN	ktlint	1	0	0	3.8s
✅ MARKDOWN	markdown-link-check	2		0	0.65s
✅ PYTHON	bandit	166		0	1.41s
✅ PYTHON	black	166	0	0	2.32s
✅ PYTHON	flake8	166		0	1.41s
✅ PYTHON	isort	166	0	0	0.5s
✅ PYTHON	mypy	166		0	2.8s
✅ PYTHON	pylint	166		0	7.26s

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