update config to lazy

- add some new plugins
- remove some old ones
- clean up/update some configs

init.lua

@@ -1,8 +1 @@
-require('core.options')
-require('core.keymaps')
-require('core.plugins')
-require('core.autocmds')
-require('plugins.lsp')
-require('plugins.ui')
-require('plugins.ai')
-require('plugins.colorscheme')
+require("core.lazy")