feat(lib): add Jupyter magic (#237)

* feat(lib): add Jupyter magic

And also use the same logger level as manim (by default)

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* fix(lib): remove deleted module

* chore(lib): fix typing issues

* chore(docs): document magic

* [pre-commit.ci] auto fixes from pre-commit.com hooks

for more information, see https://pre-commit.ci

* fix(ci): install kernel

* fix(ci): spawning is not necessary (and fails)

* chore(ci): add ipykernel

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Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

manim_slides/commons.py

@@ -44,7 +44,7 @@ def config_options(function: F) -> F:
 def verbosity_option(function: F) -> F:
     """Wraps a function to add verbosity option."""
 
-    def callback(ctx: Context, param: Parameter, value: bool) -> None:
+    def callback(ctx: Context, param: Parameter, value: str) -> None:
         if not value or ctx.resilient_parsing:
             return