build a settings screen

[joshlong]

things to configure so far:

• podcast production: assets (as ManagedFiles) to be used for the intro, bumper, etc., for a given mogul's podcasts
• podbean: cient ID and secret, should default to draft, etc.

[joshlong]

i have a generic configuration values screen. but the more i think on it the less i think the ManagedFiles for podcast sshould be specified here. instead, they should be specidfid when editing the Podcast items themselves. that, or users can choose to upload their favorite, for each episode, overriding the podcast-level ManagedFile objects. so we need to get two flows working: configure the ManagedFiles for all episodes at the Podcast level OR configure them per episode, overriding the defaults

[joshlong]

the settings screen works. closing this. the ManagfedFile stuff is out of scope.