fix(projen): Add missing configuration

Adds missing Git ignore pattern to exclude ignore rules for projen
configuration files.

Fixes #425.

.projenrc.ts

@@ -0,0 +1,13 @@
+import { Project } from '@langri-sha/projen-project'
+
+const project = new Project({
+  name: "langri-sha.com",
+  withTypeScript: true,
+  withTerraform: true,
+  workspaces: [
+    'apps/*',
+    'packages/*'
+  ]
+});
+
+project.synth();

tsconfig.json

@@ -3,6 +3,7 @@
   "extends": "@langri-sha/tsconfig",
   "files": [
     ".eslintrc.js",
+    ".projenrc.ts",
     "babel.config.js",
     "jest.config.ts",
     "lint-staged.config.js",