fix(neovim): taplo (toml LSP) configured & Rust LSP improvements

- `taplo` LSP config added so Cargo.toml files gets LSP benefits
- Rust LSP: buildScripts, ignored directories
- Crates: completion & LSP plug

common/.config/nvim/lua/core/lsp.lua

@@ -20,6 +20,7 @@ vim.lsp.enable({
     "marksman",
     "markdownlint",
     "trivy",
+    "taplo",
 })
 
 -- TIP: On new systems, install these through Mason