Comment out mason for now, set clangd, gopls and pyright as default lsp's

lua/plugins/nvim-lspconfig.lua

@@ -167,9 +167,9 @@ return { -- LSP Configuration & Plugins
     --  - settings (table): Override the default settings passed when initializing the server.
     --        For example, to see the options for `lua_ls`, you could go to: https://luals.github.io/wiki/settings/
     local servers = {
-      -- clangd = {},
-      -- gopls = {},
-      -- pyright = {},
+      clangd = {},
+      gopls = {},
+      pyright = {},
       -- rust_analyzer = {},
       -- zls = {},
       -- jdtls = {},
@@ -205,7 +205,7 @@ return { -- LSP Configuration & Plugins
     --    :Mason
     --
     --  You can press `g?` for help in this menu.
-    require('mason').setup()
+    -- require('mason').setup()
 
     -- You can add other tools here that you want Mason to install
     -- for you, so that they are available from within Neovim.