Changes cursor for scrollbars to default.

Only to fix the `cursor: text` value in editor when using scrollbars.

Sorry if is already addressed elsewhere. :) very bottom of the list of proposed changes, haha. First day downloaded, very excited.

Was originally going to only put with `.editor .vertical-scrollbar` but saw that the editor's horizontal uses the default horizontal scrollbar also used in file viewer.

Cheers,
Tom