fix: reduce the times of workspace/didChangeConfiguration

[mityu]

Reduce how many times the workspace/didChangeConfiguration notification is sent.
Also, omit needless parameter for the workspace/didChangeConfiguration notification.

[mityu]

I don't know why, but this patch prevents these diagnostics errors (shown in this screenshot) to be reported by deno lsp.

Repro steps

• vimrc.vim

if &compatible
  set nocompatible
endif

filetype plugin indent on
syntax on

set runtimepath+=/path/to/denops.vim  " Please replace this.
set runtimepath+=/path/to/lspoints  " Please replace this.

autocmd User DenopsReady call lspoints#denops#register()
autocmd FileType typescript call lspoints#attach('denols', #{
  \ rootPath: findfile('deno.json', $'{expand('%:p:h')};')->fnamemodify(':h'),
  \ })
autocmd User DenopsPluginPost:lspoints call s:setup_lspoints()
autocmd User DenopsPluginPost:lspoints ++nested call timer_start(100, {-> s:open_files()})

function s:setup_lspoints() abort
  call lspoints#load_extensions(['nvim_diagnostics'])
  call lspoints#start('denols', #{
    \ cmd: [get(g:, 'denops#deno', 'deno'), 'lsp'],
    \ settings: #{
    \   deno: #{
    \     enable: v:true,
    \     lint: v:true,
    \     unstable: v:true,
    \   }}})
endfunction

function s:open_files() abort
  e /path/to/lspoints/denops/lspoints/builtin/diagnostics.ts  " Please replace this.
  sp /path/to/lspoints/denops/lspoints/app.ts  " Please replace this.
  wincmd p
  redraw!
endfunction

• Open Neovim with nvim -u /path/to/vimrc.vim
• After two files are opened, reopen denops/lspoints/builtin/diagnostics.ts by :e command. (Maybe you have to do this for two times.)
• Some new diagnostics errors are given.

Env

• deno

deno 1.45.5 (release, aarch64-apple-darwin)
v8 12.7.224.13
typescript 5.5.2

• Neovim

NVIM v0.11.0-dev-732+g08153ddd1
Build type: Release
LuaJIT 2.1.1724512491