Add spellchecker for english files

Author: anbraten

.cspell.json

@@ -0,0 +1,13 @@
+{
+  "version": "0.2",
+  "language": "en",
+  "words": ["bunx"],
+  "ignorePaths": [
+    "**/node_modules/**/*",
+    "pnpm-lock.yaml",
+    ".gitignore",
+    ".git/**/*",
+    ".cspell.json",
+    "docs/CROWDIN/**/*"
+  ]
+}

.github/workflows/tests.yml

@@ -0,0 +1,14 @@
+name: Tests
+
+on:
+  workflow_dispatch:
+
+jobs:
+  spellcheck:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: oven-sh/setup-bun@v1
+      - name: spellcheck
+        run: |
+          bunx cspell lint --no-progress --gitignore '{**,.*}/{*,.*}'