ci,chore: add codespell support with configuration and fixes

.codespellrc

@@ -0,0 +1,9 @@
+[codespell]
+# Ref: https://github.com/codespell-project/codespell#using-a-config-file
+skip = .git,.gitignore,.gitattributes,*.svg,*-lock.yaml,*.css,.codespellrc,fixtures
+check-hidden = true
+# ignore-regex =
+# afterall - JS test framework function (afterAll)
+# inout - SQL keyword (INOUT)
+# acter - part of CHAR(?:ACTER|SET)? regex pattern for SQL keywords
+ignore-words-list = afterall,inout,acter

.github/workflows/codespell.yml

@@ -0,0 +1,23 @@
+# Codespell configuration is within .codespellrc
+---
+name: Codespell
+
+on:
+  push:
+    branches: [master]
+  pull_request:
+    branches: [master]
+
+permissions:
+  contents: read
+
+jobs:
+  codespell:
+    name: Check for spelling errors
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+      - name: Codespell
+        uses: codespell-project/actions-codespell@8f01853be192eb0f849a5c7d721450e7a467c579  # v2.2

apps/jscpd/README.md

@@ -46,7 +46,7 @@ The jscpd tool implements [Rabin-Karp](https://en.wikipedia.org/wiki/Rabin%E2%80
 
 
 ## Features
- - Detect duplications in programming source code, use semantic of programing languages, can skip comments, empty lines etc.
+ - Detect duplications in programming source code, use semantic of programming languages, can skip comments, empty lines etc.
  - Detect duplications in embedded blocks of code, like `<script>` or `<style>` sections in html
  - Blame authors of duplications
  - Generate XML report in pmd-cpd format, JSON report, [HTML report](http://kucherenko.github.io/jscpd-report.html)