web push needs to use larger field sizes
Seeing some of this in my postgresql log.
2019-01-24 13:10:15.821 UTC [509] ERROR: value too long for type character varying(255)
2019-01-24 13:10:15.821 UTC [509] STATEMENT: INSERT INTO "push_subscriptions" ("data","endpoint","key_auth","key_p256dh","token_id","user_id","inserted_at","updated_at") VALUES ($1,$2,$3,$4,$5,$6,$7,$8) RETURNING "id"
I suspect it's 255 bytes vs. 256 bytes, but I think we should just add some additional padding to be on the safe side.