Neovim config

Requires nightly.

• 100% Fennel based, using my own, "nano" Fennel shim;
• using the builtin package manager with added support for after & build hooks as well as support for lazily loading configs (so they can reference the package they are configuring, i.e. gitsigns);
• syntax highlighting (+ code folding, context, incremental selection, text objects) powered by latest (@main) [TreeSitter];
• AI ready: Copilot via LSP (npm install --global @github/copilot-language-server) + inline completion and next edit suggestions from Sidekick.nvim;
• builtin LSP setup for a 20+ grammars, of which I mainly use Go, JavaScript, Terraform and Fennel; configs copied from nvim-lspconfig;
• multi LSP setup: always Copilot then various LSP and/or 'formatprg' combinations: tsserver for JS, but prettier for formatting; gopls for Go, but I also golangci-lint-ls, etc.;
• autoformat wherever possible, either via LSP or via 'formatprg', plus organize imports for Go and JS;
• builtin "fuzzy" searching (set path=",**" and just use :find whatever<Tab> for filenames or :Grep *whatever* (set to git grep) for content);
• custom picker for files, buffers, LSP (workspace) symbols and diagnostics, that uses 'findfunc' and the builtin fuzzy-matching; with multiple select;
• custom live grep;
• git integration via gitsigns: despite the misleading name it packs quite a lot of power!;
• persistent terminal toggled via <C-Enter> (:ToggleTerm) starts in the current file's folder; :Term available for spawning additional terminal instances;
• minimal UI (no statusbar/linenumber; git branch, filename and status in titlebar);
• custom ui.input and ui.select.