Fix a lexical flaw (#23447)

Please also note, that `https://github.com/grafana/worldmap-panel/blob/master/.eslintrc` does not exist (referenced in `Linting` section) .

docs/sources/plugins/developing/code-styleguide.md

@@ -179,4 +179,4 @@ We recommend that you use a linter for your JavaScript. For ES6, the standard li
       }
     }
     ```
-5. If using Lodash, then be consequent and prefer that to the native ES6 array functions.
+5. If using Lodash, then be consistent and prefer that to the native ES6 array functions.