plugins/treesitter: re-organize treesitter plugins

plugins/languages/treesitter-context.nix

@@ -1,60 +0,0 @@
-{
-  pkgs,
-  lib,
-  config,
-  ...
-}:
-with lib; let
-  helpers = import ../helpers.nix {inherit lib;};
-in {
-  options.plugins.treesitter-context = {
-    enable = mkEnableOption "nvim-treesitter-context";
-
-    package = helpers.mkPackageOption "treesitter-context" pkgs.vimPlugins.nvim-treesitter-context;
-
-    maxLines = mkOption {
-      type = types.nullOr types.ints.positive;
-      default = null;
-      description = "How many lines the window should span. Null means no limit";
-    };
-
-    trimScope = mkOption {
-      type = types.enum ["outer" "inner"];
-      default = "outer";
-      description = "Which context lines to discard if `max_lines` is exceeded";
-    };
-
-    maxWindowHeight = mkOption {
-      type = types.nullOr types.ints.positive;
-      default = null;
-      description = "Minimum editor window height to enable context";
-    };
-
-    patterns = mkOption {
-      type = types.attrsOf (types.listOf types.str);
-      default = {};
-      description = ''
-        Patterns to use for context delimitation. The 'default' key matches all filetypes
-      '';
-    };
-
-    exactPatterns = mkOption {
-      type = types.attrsOf types.bool;
-      default = {};
-      description = "Treat the coresponding entry in patterns as an exact match";
-    };
-  };
-
-  config = let
-    cfg = config.plugins.treesitter-context;
-  in
-    mkIf cfg.enable {
-      extraPlugins = [cfg.package];
-
-      plugins.treesitter.moduleConfig.context = {
-        max_lines = cfg.maxLines;
-        trim_scope = cfg.trimScope;
-        min_window_height = cfg.maxWindowHeight;
-      };
-    };
-}