chore(main): release 0.4.0

:robot: I have created a release beep boop

config: Changed the organization of configuration. See documentation.
ui: THe syntax for the configuration of mappings changed. See the documentation :help smuggler-configuration for details.

buffers: Delete invalidated chunks and results when evaluating a new chunk. (f91987d)
config: Add a configuration option to not show evaluation results and images. (fb8a6a2)
config: Added a configuration option for images sizes. (32009b1)
config: Implement Julia's IOContext buffer settings. (c07fe8a)
configuration: Add an option to automatically select the only available socket when applicable. (8e74d4b)
images: Display image results if image.nvim is present! (9e49b38)
protocol: Perform protocol version verification after handshake. (255bd8c)
results: Display evaluation results. (7f85b72)
ui: Added configuration options for display of results. (a869907)
ui: Highlight evaluated chunks in buffers. (f02c41d)

buffers: Detect chunks invalidation consistently. (1cd54ca)
client: Fix async socket selection. (de6e60d)
client: Smarter client to handle partial or overlapping server responses. (cef2b4e)
reslime: set column position correctly for smuggling visual lines. (37b7d42)
socket: Fix default socket directory for MacOS. (aeaf90f)
ui: nil-guard results display. (8afc63c)

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