Nvim: switch F6 to ClangdSwitchSourceHeader, update plugin configs

.config/nvim/after/plugin/lspconfig.rc.vim

@@ -37,6 +37,7 @@ local on_attach = function(client, bufnr)
   vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>rn', '<cmd>lua vim.lsp.buf.rename()<CR>', opts)
   vim.api.nvim_buf_set_keymap(bufnr, 'n', '<leader>ca', '<cmd>lua vim.lsp.buf.code_action()<CR>', opts)
   vim.api.nvim_buf_set_keymap(bufnr, 'n', 'gr', '<cmd>lua vim.lsp.buf.references()<CR>', opts)
+  vim.api.nvim_buf_set_keymap(bufnr, 'n', '<F6>', '<cmd>ClangdSwitchSourceHeader<cr>', opts)
 
   -- signature.on_attach({
   --       bind = true,
@@ -106,7 +107,14 @@ nvim_lsp.groovyls.setup (
 --   )
 -- )
 
-clangd_extensions.setup()
+clangd_extensions.setup({
+  server = {
+    on_attach = on_attach,
+  },
+  inlay_hints = {
+    max_len_align = true,
+  }
+})
 -- nvim_lsp.clangd.setup(
 --   coq.lsp_ensure_capabilities({
 --     root_dir = nvim_lsp.util.root_pattern("compile_commands.json"),