docs: types, news, lua-plugin

- mention "lua_ls", not "luals". https://github.com/neovim/neovim/discussions/36182

Co-authored-by: Maria Solano <majosolano99@gmail.com>

runtime/lua/vim/lsp.lua

@@ -301,9 +301,9 @@ end
 ---     filetypes = { 'c', 'cpp' },
 ---   }
 ---   ```
---- - Get the resolved configuration for "luals":
+--- - Get the resolved configuration for "lua_ls":
 ---   ```lua
----   local cfg = vim.lsp.config.luals
+---   local cfg = vim.lsp.config.lua_ls
 ---   ```
 ---
 ---@since 13
@@ -522,7 +522,7 @@ end
 ---
 --- ```lua
 --- vim.lsp.enable('clangd')
---- vim.lsp.enable({'luals', 'pyright'})
+--- vim.lsp.enable({'lua_ls', 'pyright'})
 --- ```
 ---
 --- Example: [lsp-restart]() Passing `false` stops and detaches the client(s). Thus you can

runtime/lua/vim/lsp/client.lua

@@ -34,9 +34,9 @@ local all_clients = {}
 
 --- @class vim.lsp.ClientConfig
 ---
---- Callback invoked before the LSP "initialize" phase, where `params` contains the parameters
---- being sent to the server and `config` is the config that was passed to |vim.lsp.start()|.
---- You can use this to modify parameters before they are sent.
+--- Callback which can modify parameters before they are sent to the server. Invoked before LSP
+--- "initialize" phase (after `cmd` is invoked), where `params` is the parameters being sent to the
+--- server and `config` is the config passed to |vim.lsp.start()|.
 --- @field before_init? fun(params: lsp.InitializeParams, config: vim.lsp.ClientConfig)
 ---
 --- Map overriding the default capabilities defined by |vim.lsp.protocol.make_client_capabilities()|,

runtime/lua/vim/shared.lua

@@ -826,7 +826,7 @@ end
 ---
 ---@see https://github.com/openresty/luajit2#tableisarray
 ---
----@param t? table
+---@param t? any
 ---@return boolean `true` if array-like table, else `false`.
 function vim.isarray(t)
   if type(t) ~= 'table' then
@@ -1246,7 +1246,7 @@ end
 
 --- Returns true if object `f` can be called as a function.
 ---
----@param f any Any object
+---@param f? any Any object
 ---@return boolean `true` if `f` is callable, else `false`
 function vim.is_callable(f)
   if type(f) == 'function' then