updated config for mason to v2

add changes introduced by nvim-lua#1663

The mason-lspconfig.nvim plugin removed the 'handlers' feature in its
v2.0.0 release. This change adapts the LSP configuration to follow the
new recommended setup and keeps using the nvim-lspconfig api to
configure the servers.

Author: petervlk

lua/kickstart/plugins/lspconfig.lua

@@ -266,6 +266,15 @@ return {
         },
       }
 
+      -- The following loop will configure each server with the capabilities we defined above.
+      -- This will ensure that all servers have the same base configuration, but also
+      -- allow for server-specific overrides.
+      for server_name, server_config in pairs(servers) do
+        server_config.capabilities = vim.tbl_deep_extend('force', {}, capabilities, server_config.capabilities or {})
+        vim.lsp.config(server_name, server_config)
+        vim.lsp.enable(server_name)
+      end
+
       -- Ensure the servers and tools above are installed
       --
       -- To check the current status of installed tools and/or manually install
@@ -284,21 +293,6 @@ return {
         'stylua', -- Used to format Lua code
       })
       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 {}
-            -- This handles overriding only values explicitly passed
-            -- by the server configuration above. Useful when disabling
-            -- certain features of an LSP (for example, turning off formatting for ts_ls)
-            server.capabilities = vim.tbl_deep_extend('force', {}, capabilities, server.capabilities or {})
-            require('lspconfig')[server_name].setup(server)
-          end,
-        },
-      }
     end,
   },
 }