meta: Move dev tools to neovim module

This fixes some neovim plugins throwing errors due to missing things
such as language servers.

Note that although it *would* be possible to abstract this functionality
into a variety of imports, options, or other abstractions, including
everything at once should reduce complexity since I am not interested in
maintaining different states of configuration. In other words, either
everything works, or something doesn't work and then everything works.

modules/neovim/default.nix

@@ -16,6 +16,17 @@ in
 
   home-manager.sharedModules = [
     {
+      home.packages = with pkgs; [
+        go gopls
+        nil alejandra nixpkgs-fmt nixfmt
+        nodejs yarn deno
+        gcc rustc rustfmt cargo rust-analyzer bacon
+        marksman
+        lua-language-server
+        clang-tools
+        texlab
+      ];
+
       programs.neovim = {
         enable = true;
         extraConfig = /* vim */ ''

src/main.nix

@@ -73,35 +73,6 @@ let VARIABLES = import ./variables.nix; in {
     treefmt
     jamesdsp
 
-    # dev
-    marksman
-    lua-language-server
-    clang-tools
-    texlab
-
-    # go
-    go
-    gopls
-
-    # nix
-    nil
-    alejandra
-    nixpkgs-fmt
-    nixfmt
-
-    # node/yarn/deno
-    nodejs
-    yarn
-    deno
-
-    # rust
-    gcc
-    rustc
-    rustfmt
-    cargo
-    rust-analyzer
-    bacon
-
     # other
     audacity
     gimp