Important: It's no longer guaranteed that if component/extension
of same name exists in multiple entries in rtp which one will be
loaded. The guarantee is still there for themes . Means other
plugins or users config can overwrite a lualines internal theme
with same file name . I'm droping the guarantee for components
and extensions because there isn't much usecase for it . It's simple
to have a unique name and droping that guarantee allows more
optimizations that speeds up lualine.