Consolidate mobile and desktop designs for login form

* Stop sign up button from being a button
* Move password reset to bottom of form

Bug: T85189
Change-Id: I175e9f515d962f9078845f25f9b96079819444c6
Merge "Consolidate mobile and desktop designs for login form"
mediawiki.feedback.js: Trim whitespace from message and subject

Remove leading and trailing whitespace from submitted feedback message
and subject.

Bug: T35192
Change-Id: Ie260e3b1b15092ea49dc7b8a1a06e0094a0178a3
Merge "mediawiki.feedback.js: Trim whitespace from message and subject"
Change to unix eol style

Change-Id: I0a5f91ccdbeed28ce41614ba8721944de876056d
Merge "Change to unix eol style"
Add lots of @throws

Change-Id: I09d0c13070f966fcf23d2638d8fc1328279a5995
Add use statement for type used in MWLoggerMonologSamplingHandler::setFormatter()

Change-Id: I02629711eccfecdab77c5e6d80833806d48d07cf