Refactoring suggestions

[AlexRMU]

• migrate
  • switch completely to runes, snippets, etc
  • use $state.raw where deep reactivity is not needed
• try to separate the large components
• add more fine tuning through a reactive context
• export more components and snippets
  • it will be possible to easily change the structure, make wrappers, assemble and configure in parts
  • this will close Separate the svelte component and the js wrapper #372, turn off table mode #514 and others
• add examples of using reactivity both with and without svelte
  • now reactivity can be exported for use in vanilla js, like this
  • use $state.raw for the content variable, etc
• use a streaming parser and store the content as an ast rather than as a string
  • then the maximum data size will be limited not by the maximum row size, but by the user's RAM, it will be easier to work with patches, it will be possible to add json5, etc., we have already discussed this in Feature request - Get JSONPath based on cursor location in text mode #487
  • see also Transfer everything to svelte 5 #373
• use various file APIs on the website - this and this