Add phenaproxima and seanB as subsystem maintainers for Media

I would be open to add my name to the list, but I would definitely need help.

I would like my name on the list.

I could not imagine anyone else. @seanB and @phenaproxima are very passionated and two long term supporters of the media initiative.

RTBC +1 with patch.
Sean and Adam both are very long term contributor to the media intiative.
I think as per Drupal governance for new maintainers which will be added to Maintainers.txt requires Dries approval. As phenaproxima is already a maintainer of Migrate System so committers can add him, for SeanB it requires explicit permissions from Dries

Keeping the issue with the same status. Pinged @xjm to confirm that the issue is in the right status.
//Naveen

The patch looks good. Ready for review from @xjm and @Dries.

rtbc if you want to trigger the committers :)

Hi! The patch adds module maintainers but doesn't do anything on the initiative section as mentioned in the summary.

Just for completeness: https://www.drupal.org/contribute/core/maintainers#maintainer-types

If you want to make this issue just about the new module and push the initiative question to another issue, I suppose that would work.

So to clarify, initiative coordinator and module maintainer are different responsibilities:
https://www.drupal.org/contribute/core/maintainers#initiative
versus
https://www.drupal.org/contribute/core/maintainers#subsystem

If the contributors are just stepping up for maintainership of the subsystem, that's awesome. :) Let's just update the summary confirming that both @phenaproxima and @seanB are up for the subsystem maintainer responsibilities linked above, then any committer can commit it.

If you would like to help out as initiative coordinators, then that's a different patch that we can also review with Dries.

Thanks @seanB and @phenaproxima for stepping up for this!

Confirming that I accept subsystem maintainer responsibilities. I also confirm that I want to help out as a Initiative coordinator, but it would be best if phenaproxima could join there as well.

I also confirm that I accept subsystem maintainer responsibilities for Media.

I would like to help with initiative coordination, but I think I might be too disorganized for that. I would rather discuss that with other Media folk in IRC before accepting those responsibilities, so this patch is only for the subsystem.

I think we're good here. Back to RTBC!

Alphabetized the names as requested on IRC by @cilefen.

Committed 7c56948 and pushed to 8.4.x. Thank you so much for stepping up on this important effort in Drupal core!

P.S. I opened #2883921: Place migrate sections in alphabetical order in MAINTAINERS.txt

@xjm was nice enough to remind me so: @phenaproxima and @seanB have been given appropriate permissions on https://www.drupal.org/node/3060 and https://groups.drupal.org/core.

By the way, @seanB also expressed interest in helping as an initiative lead as well. We can file a separate issue for that since @phenaproxima indicated he wants to discuss the role first. We can also use that new issue to reach out to contributors and see if anyone else can help support @seanB for those efforts. :)

Edit: misremembered comment. Fixed.

Added #2884700: Initiative lead for Media Initiative to discuss the Initiative Lead for Media.