treewide: migrate to pluginRC for correct DAG order

The "new" DAG order is as follows:
- (luaConfigPre)
- globalsScript
- basic
- theme
- pluginConfigs
- extraPluginConfigs
- mappings
- (luaConfigPost)

modules/plugins/ui/smartcolumn/config.nix

@@ -13,7 +13,7 @@ in {
     vim = {
       startPlugins = ["smartcolumn"];
 
-      luaConfigRC.smartcolumn = entryAnywhere ''
+      pluginRC.smartcolumn = entryAnywhere ''
         require("smartcolumn").setup(${toLuaObject cfg.setupOpts})
       '';
     };