Merge 'upstream': various fixes

- Propsed fix for init.lua warnings
- Remove duplicate cmp-path
- fix: regression introduced in db78c0b217
- Fix: fix the cmp-nvim-lsp-signature-help link
- feat: add basic function signature help
- perf: load tokyonight.nvim in the intended way

lua/kickstart/plugins/lspconfig.lua

@@ -109,13 +109,26 @@ return {
           --  For example, in C this would take you to the header.
           map('gD', vim.lsp.buf.declaration, '[G]oto [D]eclaration')
 
+          -- This function resolves a difference between neovim nightly (version 0.11) and stable (version 0.10)
+          ---@param client vim.lsp.Client
+          ---@param method vim.lsp.protocol.Method
+          ---@param bufnr? integer some lsp support methods only in specific files
+          ---@return boolean
+          local function client_supports_method(client, method, bufnr)
+            if vim.fn.has 'nvim-0.11' == 1 then
+              return client:supports_method(method, bufnr)
+            else
+              return client.supports_method(method, { bufnr = bufnr })
+            end
+          end
+
           -- The following two autocommands are used to highlight references of the
           -- word under your cursor when your cursor rests there for a little while.
           --    See `:help CursorHold` for information about when this is executed
           --
           -- When you move your cursor, the highlights will be cleared (the second autocommand).
           local client = vim.lsp.get_client_by_id(event.data.client_id)
-          if client and client:supports_method(vim.lsp.protocol.Methods.textDocument_documentHighlight) then
+          if client and client_supports_method(client, vim.lsp.protocol.Methods.textDocument_documentHighlight, event.buf) then
             local highlight_augroup = vim.api.nvim_create_augroup('kickstart-lsp-highlight', { clear = false })
             vim.api.nvim_create_autocmd({ 'CursorHold', 'CursorHoldI' }, {
               buffer = event.buf,
@@ -142,7 +155,7 @@ return {
           -- code, if the language server you are using supports them
           --
           -- This may be unwanted, since they displace some of your code
-          if client and client:supports_method(vim.lsp.protocol.Methods.textDocument_inlayHint) then
+          if client and client_supports_method(client, vim.lsp.protocol.Methods.textDocument_inlayHint, event.buf) then
             map('<leader>th', function()
               vim.lsp.inlay_hint.enable(not vim.lsp.inlay_hint.is_enabled { bufnr = event.buf })
             end, '[T]oggle Inlay [H]ints')
@@ -245,6 +258,8 @@ return {
       require('mason-tool-installer').setup { ensure_installed = ensure_installed }
 
       require('mason-lspconfig').setup {
+        ensure_installed = {}, -- explicitly set to an empty table (Kickstart populates installs via mason-tool-installer)
+        automatic_installation = false,
         handlers = {
           function(server_name)
             local server = servers[server_name] or {}