chore: Update cspell and fix issues

- covert `cSpell.json` to `cspell.config.yaml`
- break up the word list into multiple dictionary files
- fix spelling issues
- Enable spell checking code for non-test files

.eslintrc.cjs

@@ -78,9 +78,9 @@ module.exports = {
     '@cspell/spellchecker': [
       'error',
       {
-        checkIdentifiers: false,
-        checkStrings: false,
-        checkStringTemplates: false,
+        checkIdentifiers: true,
+        checkStrings: true,
+        checkStringTemplates: true,
       },
     ],
     'no-empty': [
@@ -159,6 +159,19 @@ module.exports = {
         '@typescript-eslint/no-unused-vars': 'off',
       },
     },
+    {
+      files: ['*.spec.{ts,js}', 'tests/**', 'cypress/**/*.js'],
+      rules: {
+        '@cspell/spellchecker': [
+          'error',
+          {
+            checkIdentifiers: false,
+            checkStrings: false,
+            checkStringTemplates: false,
+          },
+        ],
+      },
+    },
     {
       files: ['*.html', '*.md', '**/*.md/*'],
       rules: {