Show event end time on schedule

[Calvin-LL]

At DEF CON this year I found it inconvenient to have to click into an event to see when it ends. I wanted to prioritize events like talks that lasts around an hour, over events like CTFs that last all day which I can go check out later. This PR adds the end times of the events in schedule.

I have also made PRs for this feature for the web and iOS version: PR for web, PR for iOS.

It looks like this when I run it in the emulator:

light	dark

[Advice-Dog]

We do want to show the duration of the events better, but this change would clutter the UI and be overwhelming to read.

[Calvin-LL]

We do want to show the duration of the events better, but this change would clutter the UI and be overwhelming to read.

Perhaps we can have the end time in a smaller font and lighter color? I think the AM PM indicators can also be removed if we want less clutter, the iOS version seems to do fine with them.

[Calvin-LL]

We do want to show the duration of the events better, but this change would clutter the UI and be overwhelming to read.

Perhaps we can have the end time in a smaller font and lighter color? I think the AM PM indicators can also be removed if we want less clutter, the iOS version seems to do fine with them.

I have updated the PR and screenshot to remove AM/PM, remove the "-" and make the end time text smaller.

[Advice-Dog]

We do want to show the duration of the events better, but this change would clutter the UI and be overwhelming to read.

Perhaps we can have the end time in a smaller font and lighter color? I think the AM PM indicators can also be removed if we want less clutter, the iOS version seems to do fine with them.

I have updated the PR and screenshot to remove AM/PM, remove the "-" and make the end time text smaller.

I don't think this is the best solution for this problem, you have to consider events that span multiple days and how it effects readability. I'm considering adding the duration into the tags, that would allow the user to filter by duration, as well as see duration at a glance.

And the future plans will be to move to a sticky header for the time slot, so only the first event of a time block will have a start time.