BookStack Code Mirror - bookstack/commit

]> BookStack Code Mirror - bookstack/commit

Updated codemirror and updated codemirror base styles

Aligns styles with current release, since was causing overflow
with scrollbars.

Fixes #2267

package-lock.json		diff \| blob \| history
package.json		diff \| blob \| history
resources/sass/_codemirror.scss		diff \| blob \| history

The core source code for the BookStack project.