Standardize header alignment
Right now it's very random:
align func names and params
adw-animation-private.h
adw-avatar.h
adw-enum-value-object.h
adw-window-title.h
gtkprogresstrackerprivate.h
align func names but not params
adw-carousel.h
adw-carousel-box-private.h
adw-carousel-indicator-dots.h
adw-carousel-indicator-lines.h
adw-leaflet.h
adw-preferences-group.h
adw-preferences-page.h
adw-shadow-helper-private.h
adw-status-page.h
adw-swipe-tracker.h
adw-window-mixin-private.h
align func names in each` cluster separately
adw-action-row.h
adw-animation.h
adw-application-window.h
adw-bin.h
adw-clamp.h
adw-clamp-layout.h
adw-clamp-scrollable.h
adw-combo-row.h
adw-enum-list-model.h
adw-flap.h
adw-focus-private.h
adw-preferences-window.h
adw-squeezer.h
adw-swipe-tracker-private.h
adw-view-switcher-bar.h
adw-view-switcher-button-private.h
adw-view-switcher.h
adw-view-switcher-title.h
adw-window.h
mixed
adw-expander-row.h
adw-gizmo-private.h
adw-header-bar.h
adw-preferences-row.h
adw-swipeable.h
adw-swipe-group.h
adw-value-object.h
and causes confusion. We should pick one style and stick to it.