Replace typeof before DCE

[mischnic]

Part of #7691

For these patterns:

(function(root, factory) {
    if ( typeof exports === 'object' ) {
        if ( typeof module === 'object' ) {
            module.exports = factory( require("js-sha256"), require("base64-js") );
        } else {
            exports["keycloak"] = factory( require("js-sha256"), require("base64-js") );
        }
    } else {
		...inlined js-sha256 and base64-js...
	}
...

Parcel would previously include both the requires and the else branch

[height]

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