* Comment tweak
* Directly print traceback
Since the shell.showtraceback is giving some issues
* Make InteracrtiveSceneEmbed into a class
This way it can keep track of it's internal shell; use of get_ipython has a finicky relationship with reloading.
* Move remaining checkpoint_paste logic into scene_embed.py
This involved making a few context managers for Scene: temp_record, temp_skip, temp_progress_bar, which seem useful in and of themselves.
* Change null key to be the empty string
* Ensure temporary svg paths for Text are deleted
* Remove unused dict_ops.py functions
* Remove break_into_partial_movies from file_writer configuration
* Rewrite guarantee_existence using Path
* Clean up SceneFileWriter
It had a number of vestigial functions no longer used, and some setup that could be made more organized.
* Remove --save_pngs CLI arg (which did nothing)
* Add --subdivide CLI arg
* Remove add_extension_if_not_present
* Remove get_sorted_integer_files
* Have find_file return Path
* Minor clean up
* Clean up num_tex_symbols
* Fix find_file
* Minor cleanup for extract_scene.py
* Add preview_frame_while_skipping option to scene config
* Use shell.showtraceback function
* Move keybindings to config, instead of in-place constants
* Replace DEGREES -> DEG
* Add arg to clear the cache
* Separate out full_tex_to_svg from tex_to_svg
And only cache to disk the results of full_tex_to_svg. Otherwise, making edits to the tex_templates would not show up without clearing the cache.
* Bug fix in handling BlankScene
* Make checkpoint_states an instance variable of CheckpointManager
As per https://github.com/3b1b/manim/issues/2272
* Move resizing out of Window.focus, and into Window.init_for_scene
* Make default output directory "." instead of ""
To address https://github.com/3b1b/manim/issues/2261
* Remove input_file_path arg from SceneFileWriter
* Use Dict syntax in place of dict for config more consistently across config.py
* Simplify get_output_directory
* Swap order of preamble and additional preamble
* Minor stylistic tweak
* Have UnitInterval pass on kwargs to NumberLine
* Add simple get_dist function
* Have TracedPath always update to the stroke configuration passed in
* Have Mobject.match_points apply to all parts of data in pointlike_data_key
* Always call Mobject.update upon adding an updater
* Add Surface.uv_to_point
* Make sure Surface.set_opacity takes in a recurse option
* Update num_tex_symbols to account for \{ and \}
To fix the error of "AttributeError: 'TracedPath' object has no attribute 'n_points_per_cubic_curve'" (because in the CONFIG dictionary of VMobject class, the n_points_per_cubic_curve dose not exist, and now 'n_points_per_curve' is used instead)
