Revert "widgets: add autotools config.h to widgets.h"

This reverts commit a2b03f384b6595a31ca7512a6df389cdef70b75d.
Revert "widgets: add logging on thread creation"

This reverts commit 6c5c1cc8be411f4efa7ddd6b1140541a0921fbfd.
Revert "widgets/desktop: split window_title to own widget"

This reverts commit f148bc3b348bbc1bd17d4b628c537d5197e9a6e2.
Revert "Fix now playing widget ID"

This reverts commit 44ee03a832409bf5bdfd6cc63a346636639ee37c.
Revert "Refactor widget data structures"

This reverts commit e7bbeb42dce8f69f3f18540d09b2a50e5256dc1b.