feat: lsp-info command

[TheRealLorenz]

This PR implements :lsp-info, which opens a modified version of an Info Component, LspInfo.

In order to extend the Info Component, it has been generalised a little bit.

Currently LspInfo appears in the center of the screen and looks like this:

┌Lsp Info──────────────────────────────────────────────┐
│ Press q or Esc to close this window                  │
│                                                      │
│ Detected language: javascript                        │
│ File-type(s): [js, mjs, cjs]                         │
│ Root(s): []                                          │
│ Formatter: `prettier --parser typescript`            │
│                                                      │
│ Detected clients:                                    │
│   ✓ eslint (id: 1)                                   │
│     command: `vscode-eslint-language-server --stdio` │
│                                                      │
│   ✓ typescript-language-server (id: 0)               │
│     command: `typescript-language-server --stdio`    │
│                                                      │
└──────────────────────────────────────────────────────┘

Planned and implemented features:

• LSP status.
• Colored output.
• View latest error(s).
• Start/Stop/Restart LSPs.
• View loaded LSP config.

I'm open to feedbacks and suggestions!

Maybe related to #6875.

Inspired by nvim-lspconfig's :LspInfo.