treewide: make the entire generated config lua based (#333)

* modules: switch to gerg's neovim-wrapper

* modules: use initViml instead of writing the file

* treewide: make the entire generated config lua based

* docs: remove mentions of configRC

* plugins/treesitter: remove vim.cmd hack

* treewide: move resolveDag to lib

* modules/wrapper(rc): fix typo

* treewide: migrate to pluginRC for correct DAG order

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

* plugins/theme: fix theme DAG place

* plugins/theme: fix fixed theme DAG place

* modules/wrapper(rc): add removed option module for configRC

* docs: add dag-entries chapter, add release note entry

* fix: formatting CI

* languages/nix: add missing `local`

* docs: fix page link

* docs: add mention of breaking changes at the start of the release notes

* plugins/neo-tree: convert to pluginRC

* modules/wrapper(rc): add back entryAnywhere

* modules/wrapper(rc): expose pluginRC

* apply raf patch

---------

Co-authored-by: NotAShelf <raf@notashelf.dev>

lib/dag.nix

@@ -8,10 +8,10 @@
 #  - the addition of the function `entryBefore` indicating a "wanted
 #    by" relationship.
 {lib}: let
-  inherit (builtins) isAttrs attrValues attrNames elem all head tail length;
+  inherit (builtins) isAttrs attrValues attrNames elem all head tail length toJSON isString;
   inherit (lib.attrsets) filterAttrs mapAttrs;
   inherit (lib.lists) toposort;
-  inherit (lib.nvim.dag) empty isEntry entryBetween entryAfter entriesBetween;
+  inherit (lib.nvim.dag) empty isEntry entryBetween entryAfter entriesBetween entryAnywhere topoSort;
 in {
   empty = {};
 
@@ -147,8 +147,22 @@ in {
     ${section.data}
   '';
 
-  mkVimrcSection = section: ''
-    " SECTION: ${section.name}
-    ${section.data}
-  '';
+  resolveDag = {
+    name,
+    dag,
+    mapResult,
+  }: let
+    # When the value is a string, default it to dag.entryAnywhere
+    finalDag = mapAttrs (_: value:
+      if isString value
+      then entryAnywhere value
+      else value)
+    dag;
+    sortedDag = topoSort finalDag;
+    result =
+      if sortedDag ? result
+      then mapResult sortedDag.result
+      else abort ("Dependency cycle in ${name}: " + toJSON sortedDag);
+  in
+    result;
 }