fix(config): set termguicolors on start, avoid a strange error that I was having

lua/doom/core/config/init.lua

@@ -24,6 +24,11 @@ else
 	)
 end
 
+-- Set termguicolors on load
+if vim.fn.has('vim_starting') then
+    vim.opt.termguicolors = true
+end
+
 -- {{{ Default doom_config values
 
 -- default_doom_config_values loads the default doom_config values
@@ -418,6 +423,12 @@ end
 --
 -- @param langs The list of languages in the doomrc
 M.install_servers = function(langs)
+	-- selene: allow(undefined_variable)
+	if
+		packer_plugins
+		and packer_plugins['lspinstall']
+		and packer_plugins['lspinstall'].loaded
+	then
 	    local lspinstall = require('lspinstall')
 	    local installed_servers = lspinstall.installed_servers()
 	    local available_servers = lspinstall.available_servers()
@@ -445,6 +456,7 @@ M.install_servers = function(langs)
 		    end
 	    end
 	end
+end
 
 -- Check plugins updates on start if enabled
 if M.load_config().doom.check_updates then