opencode feat: add manual refresh shortcut for models in tui

resolves #4734

some notes about changes:

i think it's "cleaner" to have a way to just get new providers and return new providers using /config/providers?refresh=true, but afaik it needed much changes in the sync provider, specifically in the bootstrap method. so i did what was previously done in dialog-provider: just dispose and rebootstrap the client
since this adds the 3rd keybinding to the dialog-model screen, the modal width is not enough for all of them to sit in one row at the bottom of the dialog. one approach is to just wrap them, but imho it wasn't a nice ui. so i added some code to dialog-select to change from row layout to column when they don't fit in just one row. if you don't like it just tell me to remove it and add flexWrap.
i updated the js sdk. i didn't try to update stainless since i think it needs an account, and i updated the python sdk but the changes were way too much :) maybe i shouldn't touch that
i checked the desktop package to add the shortcut there too, but afaik there was no example of keyboard shortcuts there. i would be happy to add it if you tell me the convention