[WIP] Improve LSP support

[AlexBeauchemin]

Work in progress

See this thread for more info: #39 (comment)

I'm not sure if this is the correct way to address colors becoming "off" once LSP kicks in though, but it works.

• Improve lsp colors (typescript)
• Improve lsp colors (typescriptreact / tsx)
• Improve lsp colors (lua)
• Add nvim-dashboard support (lazyvim)
• Improve neotree support
• Improve border contrast with transparent background on floating windows (lazygit)

TODO: Provide screenshots of the difference

[1999shaswat]

@AlexBeauchemin Just installed your fork. It works flawlessly. You are god sent! Thanks a lot!!
OLD

NEW

[olivercederborg]

@AlexBeauchemin is this still a WIP PR?

[AlexBeauchemin]

@olivercederborg I eventually switched to a different colorscheme so stopped working on it, but, while not perfect, I used this for a while and it was good enough (in my opinion)

I'll let you decide if you want to merge/include those changes or not
While this can be polished, I think it's still a net improvement on the current state of the colorscheme (nothing against you or your implementation, just adding a sane default when the LSP kicks in)