build: upgrade to Node v16

Updated pkgs.nix to a5774e76bb8c3145eac524be62375c937143b80c
Updated node2nix to 1.11.0 and loading directly from GitHub
Updated pkg to 5.6.0 and using pkg-fetch 3.3 base binaries
Updated to TypeScript 4.5+
Updated @types/node to 16.11.7
Updated node-gyp-build to 4.4.0
Updated typedoc to 0.22.15, the .nojekyll generation is automatic
Changed to target ES2021 as node 16 supports it
Bin executable duct-tape in default.nix because node2nix no longer generates bin executables
Updated pkg builds hashes to v16.14.2 and specified target node range

.eslintrc

@@ -20,7 +20,7 @@
   "parserOptions": {
     "project": "tsconfig.json",
     "sourceType": "module",
-    "ecmaVersion": 2020
+    "ecmaVersion": 2021
   },
   "rules": {
     "linebreak-style": ["error", "unix"],

default.nix

@@ -1,5 +1,6 @@
 { runCommandNoCC
 , callPackage
+, jq
 }:
 
 let
@@ -32,11 +33,25 @@ let
         "${utils.node2nixProd}/lib/node_modules" \
         "$out/lib/node_modules/$packageName/"
     fi
-    # create symlink to the deployed executable folder, if applicable
-    if [ -d "${utils.node2nixDev}/lib/node_modules/.bin" ]; then
-      cp -r ${utils.node2nixDev}/lib/node_modules/.bin $out/lib/node_modules/
-      ln -s $out/lib/node_modules/.bin $out/bin
+    # symlink bin executables
+    if [ \
+      "$(${jq}/bin/jq 'has("bin")' "$out/lib/node_modules/${utils.node2nixDev.packageName}/package.json")" \
+      == \
+      "true" \
+    ]; then
+      mkdir -p "$out/bin"
+      while IFS= read -r bin_name && IFS= read -r bin_path; do
+        # make files executable
+        chmod a+x "$out/lib/node_modules/${utils.node2nixDev.packageName}/$bin_path"
+        # create the symlink
+        ln -s \
+          "../lib/node_modules/${utils.node2nixDev.packageName}/$bin_path" \
+          "$out/bin/$bin_name"
+      done < <(
+        ${jq}/bin/jq -r 'select(.bin != null) | .bin | to_entries[] | (.key, .value)' \
+        "$out/lib/node_modules/${utils.node2nixDev.packageName}/package.json"
+      )
     fi
-  '';
+    '';
 in
   drv