Now that auth flows can show a server name like `example.com` which might
delegate the HS to some other server, it could be confusing to see text like
"Sign in to example.com", especially if `example.com` runs an identity service,
uses SSO, has its own account system, or other things like this.
To clarify that we mean Matrix accounts, all auth flows are updated to talk in
terms of "<verb> your Matrix account on <server>".
Fixes part of
https://github.com/vector-im/riot-web/issues/8763#issuecomment-464823909.
If a default server name is set and the current HS URL is the default HS URL,
we'll display that name in the "your account" text on the forgot password form.
This can be a bit more user friendly, especially when the HS is delegated to
somewhere such as Modular, since you'll then see "example.com" instead of
"example.modular.im", which you have no direct relationship with as a user.
This is the key bit of https://github.com/vector-im/riot-web/issues/8763 for
forgot password.
If a default server name is set and the current HS URL is the default HS URL,
we'll display that name in the "sign in to" text on the login form.
This can be a bit more user friendly, especially when the HS is delegated to
somewhere such as Modular, since you'll then see "example.com" instead of
"example.modular.im", which you have no direct relationship with as a user.
This is the key bit of https://github.com/vector-im/riot-web/issues/8763 for
login.
If a default server name is set and the current HS URL is the default HS URL,
we'll display that name in the "your account" text on the registration form.
This can be a bit more user friendly, especially when the HS is delegated to
somewhere such as Modular, since you'll then see "example.com" instead of
"example.modular.im", which you have no direct relationship with as a user.
This is the key bit of https://github.com/vector-im/riot-web/issues/8763 for
registration.
`ServerTypeSelector` would call its `onChange` prop both at construction
(because it computed the default selected type and consumers might want to know)
as well as on actual user change. This ended up complicating consumer code, as
they want to differentiate between initial state and changes made by the user.
To simplify things, `ServerTypeSelector` now exports a function to compute the
server type from HS URL, which can be useful for setting its initially selected
type. The consumer now provides that type via a prop, and `onChange` is now only
called for actual user changes, simplifying the logic in `Registration` which
uses `ServerTypeSelector`.
In addition, some usages of `customHsUrl` vs. `defaultHsUrl` in `Registration`
are simplified to be `customHsUrl` only (since it already includes a fallback to
the default URL in `MatrixChat`).
We weren't correctly jumping into the appropriate bit of the registration
flow when coming in from an email link.
* If we have client secret / sessionId, go straight to registration phase
* Don't reset server URLs when the server type component tells us its
initial value
* Confusingly, pass the custom server URL as 'default server URL' to
the custom server type, as this is what we want the inital section
to be based on.
Fixes https://github.com/vector-im/riot-web/issues/8490
