treewide: begin restructuring the module tree

modules/plugins/lsp/lsplines/config.nix

@@ -0,0 +1,21 @@
+{
+  config,
+  lib,
+  ...
+}: let
+  inherit (lib.modules) mkIf;
+  inherit (lib.nvim.dag) entryAfter;
+
+  cfg = config.vim.lsp;
+in {
+  config = mkIf (cfg.enable && cfg.lsplines.enable) {
+    vim.startPlugins = ["lsp-lines"];
+    vim.luaConfigRC.lsplines = entryAfter ["lspconfig"] ''
+      require("lsp_lines").setup()
+
+      vim.diagnostic.config({
+        virtual_text = false,
+      })
+    '';
+  };
+}

modules/plugins/lsp/lsplines/default.nix

@@ -0,0 +1,6 @@
+{
+  imports = [
+    ./config.nix
+    ./lsplines.nix
+  ];
+}

modules/plugins/lsp/lsplines/lsplines.nix

@@ -0,0 +1,11 @@
+{lib, ...}: let
+  inherit (lib.options) mkEnableOption;
+in {
+  options.vim.lsp = {
+    lsplines = {
+      enable = mkEnableOption ''
+        diagnostics using virtual lines on top of the real line of code. [lsp_lines]
+      '';
+    };
+  };
+}