Allow users to define their own external sites in personal settings

[sunjam]

Please consider allowing unprivileged users to mount their own external sites under Personal Settings. Currently only an admin can do this.

[nickvergessen]

Not sure if we want to do this…

[sunjam]

It would quite helpful to have as an optional feature, which could be enabled by the admin of an External Sites app.

[Zocker1999NET]

Not sure if we want to do this…

For clarification, does this mean "not sure if we want this even when someone makes a PR" or rather "we don't want to invest much time in this feature, a PR would be fine" ?