headings! unknown tag handling (that doesn’t work)!

well we’ve got some nice stuff now! here’s a list of everything, including problems!:

just whitespace? no more!: tokens that are just whitespace get omitted
typescript lsp doesn’t complain: oh my god finally that was so annoying
what’s this tag?: if it doesn’t have a handler, it falls back to the default, that is, it turns into a string! this doesn’t work properly though, i have to fix this
ching chong ruby tags: now ruby tags are supported!
is that a highlighter?: mark elements are now supported, which just put a yellow bg on some text
is this a block element or not?: now the renderer can tell by looking at a token’s block property
proper heading rendering?!?!?: chatgpt wrote the entirety of this part because you cannot bother me to make an efficient function that wraps giant text art letters based on width
where’s the inline code?: that’s right, it doesn’t work and gets completely omitted!

Changelog

(456161f) Trim content, add boolean property
(07da8a6) Add handlers type to make the LSP shut up, trim strings in test file
(b4d251c) Add handling for unknown tags
(d903b48) Add support for dfn, samp, ruby tags
(813d934) Fix code to stop TypeScript (vtsls lsp) warnings