GHA CI: add spelling check (codespell)

.pre-commit-config.yaml

@@ -60,3 +60,24 @@ repos:
         )$
       exclude_types:
         - ts
+
+  - repo: https://github.com/codespell-project/codespell
+    rev: v2.2.5
+    hooks:
+    - id: codespell
+      name: Check spelling (codespell)
+      args: ["--ignore-words-list", "additionals,curren,fo,ket,superseeding,te,ths"]
+      exclude: |
+        (?x)^(
+          .*\.desktop |
+          .*\.qrc |
+          build-aux/.* |
+          Changelog |
+          dist/windows/installer-translations/.* |
+          m4/.* |
+          src/base/3rdparty/.* |
+          src/searchengine/nova3/socks.py |
+          src/webui/www/private/scripts/lib/.*
+        )$
+      exclude_types:
+        - ts