Event Dashboard Match Design and Flow

[phillipcutter]

Authors: @phillipcutter @eachen1010

What does this PR contain?

1. Updated DummyEvents page to match lo-fi design and flow from Figma designs
   • Sidebar with clickable buttons to go home or view profile (doesn't do anything currently)
   • Create event button opens previous modal to create an event (some fields are set to defaults for testing, like date/time)
   • Select allows selecting events, with a new delete button that appears
     • Selecting an event and clicking "Delete" brings up a confirmation modal
     • Selecting no events and clicking "Delete" exits selection mode
     • A new "Deselect all" button replaces "Create event" and, when clicked, deselects all events and exits selection mode
   • Clicking any event opens a modal with more information

How did you test these changes?

We ran the backend locally and tested creating and deleting events to ensure it was working properly (the issue I mentioned during today's dev meeting was caused by me not pulling the latest backend changes lol). We also tested various edge cases, such as clicking delete with no events selected.

Attach images (if applicable)

/events page

Create new event modal (UI of form is still a placeholder)

Detailed event modal (triggered when clicking on an event)

Selecting events

Permanently delete confirmation modal

Deleted toast

Closes #40

[Aokijiop]

Nice job matching the design! Also, thank you for going back and separating the modals into different components! The PSA was more meant for future tasks but you guys going back and fixing it with your current issue is really helpful for us!