speed up :LspInstall, :LspUninstall, :LspUninstallAll commands (#175)

- `:LspUninstallAll` now just nukes the entire install directory immediately,
  instead of uninstalling each server one by one. There's also a confirmation
  prompt now.
- `:LspInstall` & `:LspUninstall` now sources its autocompletion directly from
  a Lua table, instead of sourcing the server names from each server module (thus
  avoiding unnecessary `require` calls).

1 files changed, 4 insertions, 4 deletions

diff --git a/lua/nvim-lsp-installer/settings.lua b/lua/nvim-lsp-installer/settings.lua
index 1d999573..f10b9e28 100644
--- a/lua/nvim-lsp-installer/settings.lua
+++ b/lua/nvim-lsp-installer/settings.lua
@@ -1,6 +1,8 @@
 local path = require "nvim-lsp-installer.path"
 
-local DEFAULT_SETTINGS = {
+local M = {}
+
+M._DEFAULT_SETTINGS = {
     ui = {
         icons = {
             -- The list icon to use for installed servers.
@@ -48,9 +50,7 @@ local DEFAULT_SETTINGS = {
     max_concurrent_installers = 4,
 }
 
-local M = {}
-
-M.current = DEFAULT_SETTINGS
+M.current = M._DEFAULT_SETTINGS
 
 function M.set(opts)
     M.current = vim.tbl_deep_extend("force", M.current, opts)