Refactor neovim config file structure

All plugins are now in their own files with their lazy specifications
and configurations. Also moved lazy initialization to init.lua because
it is very compact now

home/.config/nvim/lua/lsp_utils.lua

@@ -0,0 +1,72 @@
+-- This module contains lsp related
+-- reusable functions
+local m = {}
+
+-- Map LSP specific keybinds.
+-- This makes them only available when LSP is running
+function m.map_keys()
+  local telescope_builtin = require("telescope.builtin")
+  require("which-key").register({
+    g = {
+      name = "Go to",
+      d = { telescope_builtin.lsp_definitions, "Definition" },
+      D = { vim.lsp.buf.declaration, "Declaration" },
+      i = { telescope_builtin.lsp_implementations, "Implementation" },
+      r = { telescope_builtin.lsp_references, "References" },
+      s = { telescope_builtin.lsp_document_symbols, "Symbols" },
+    },
+    ["<leader>"] = {
+      name = "Leader",
+      w = {
+        name = "Workspace",
+        a = { vim.lsp.buf.add_workspace_folder, "Add folder" },
+        r = { vim.lsp.buf.remove_workspace_folder, "Remove folder" },
+        l = {
+          function()
+            print(vim.inspect(vim.lsp.buf.list_workspace_folders()))
+          end,
+          "List folders",
+        },
+      },
+      k = { vim.lsp.buf.signature_help, "Signature help" },
+      D = { vim.lsp.buf.type_definition, "Type definition" },
+      rn = { vim.lsp.buf.rename, "Rename symbol" },
+      ca = { vim.lsp.buf.code_action, "Code action" },
+      e = { vim.diagnostic.open_float, "Open diagnostics" },
+      F = { vim.lsp.buf.format, "Format with LSP" },
+    },
+    K = { vim.lsp.buf.hover, "Hover" },
+    ["["] = { d = { vim.diagnostic.goto_prev, "Previous diagnostic" } },
+    ["]"] = { d = { vim.diagnostic.goto_next, "Next diagnostic" } },
+  })
+end
+
+
+function m.on_attach(client, bufnr)
+  -- Attach navic if document symbols are available
+  if client.server_capabilities.documentSymbolProvider then
+    require("nvim-navic").attach(client, bufnr)
+  end
+
+  -- Setup keybinds
+  m.map_keys()
+end
+
+function m.get_capabilities()
+  -- Combine built-in LSP and cmp cabaibilities
+  local capabilities = vim.tbl_deep_extend(
+    "force",
+    vim.lsp.protocol.make_client_capabilities(),
+    require("cmp_nvim_lsp").default_capabilities()
+  )
+
+  -- Neovim hasn't added foldingRange to default capabilities, users must add it manually
+  -- for ufo
+  --capabilities.textDocument.foldingRange = {
+  --  dynamicRegistration = false,
+  --  lineFoldingOnly = true,
+  --}
+  return capabilities
+end
+
+return m