style: enforce consistent quote style and add netrw settings

init.lua

@@ -1,7 +1,7 @@
 -- load config
-require("core.options")
-require("core.functions")
-require("core.keys")
+require('core.options')
+require('core.functions')
+require('core.keys')
 require('core.autocmd')
-require("core.lsp")
-require("core.lazy")
+require('core.lsp')
+require('core.lazy')