Make the upcoming event list mobile version more compact

[hell03610]

When viewing the upcoming event page from a mobile phone, the event grid turns into a list. However the list is not very compact as the community avatar image is still very big.

Rethink how to show this list in mobile so it is more compact.

A possible solution would be a style similar to an inbox mailing list.

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(rounded avatar) event title
                              community name                     date
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