Add account components 386-405; Reduce setting, PinInput Cmd+V

Twenty account components: SettingsList, OptionCycler, KeyBindings,
ControllerMap, ProfileCard, CharacterCreator, LoginForm, PasswordGrid,
SessionList, LanguagePicker, PalettePicker, VolumeMixer,
DifficultySelect, AccessibilityOptions, AccountSwitcher, PlayerSelect,
TwoFactor, About, PatchNotes and FeedbackForm.

The components never check credentials, and no secret reaches the log:
LoginForm reports Submitted and the caller counts Failures; each new
failure clears the password, refocuses it, shakes the form and names no
field. TwoFactor builds on input.PinInput and drains an epoch-aligned
period bar. PalettePicker draws each tile in its own palette on a
pixel.Pad grid.

pixel.Settings.Reduce stills motion like the system preference, the
micro font gains '?', display.Face draws avatar faces anywhere, and
input.PinInput pastes on Cmd+V as native hosts send it.

pixel/font_test.go

@@ -193,7 +193,7 @@ func hanging(punct func(rune) bool) func(rune) bool {
 }
 
 func TestMicroFont(t *testing.T) {
-	set := "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ+-#.:/%! "
+	set := "0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZ+-#.:/%!? "
 	seen := map[[MicroHeight]uint8]rune{}
 	for _, r := range set {
 		g := microGlyph(r)