Lint all the files

Right now only files in the `browser/adapters/` folder are being linted: https://github.com/bitovi/funcunit/blob/c29154f65487c1dfeb474183028ae7edced3c5be/package.json#L34

That glob should be expanded to something like: `*.js browser/*.js browser/**/*.js`

There are a bunch of linting errors in the `browser/*.js` files, so those will need to be fixed.

Start in package.json at the lint configuration around line 34 and inspect the existing browser/adapters/ glob. Expand the lint targets to include the root JavaScript files and browser/*.js, then run the project’s lint command and fix the reported errors in those files. Done means all intended JavaScript files lint successfully.

Written by the indexing model from the issue text.