Merge 'upstream': various changes 2025-05-10

- fix: rename vim.highlight.on_yank to vim.hl.on_yank
- README: mention fd-find in requirements
- don't lazy-load neo-tree so netrw hijacking on startup works
- Replace vim.opt with vim.o
- feat: switch vim-sleuth for guess-indent.nvim
- Change to Mason's new address

lua/lazy-bootstrap.lua

@@ -7,7 +7,10 @@ if not (vim.uv or vim.loop).fs_stat(lazypath) then
   if vim.v.shell_error ~= 0 then
     error('Error cloning lazy.nvim:\n' .. out)
   end
-end ---@diagnostic disable-next-line: undefined-field
-vim.opt.rtp:prepend(lazypath)
+end
+
+---@type vim.Option
+local rtp = vim.opt.rtp
+rtp:prepend(lazypath)
 
 -- vim: ts=2 sts=2 sw=2 et