Display invalid markers in a separate sidebar

[mbilker]

Currently, invalid entries from the data sources are stored without marker.pin and never displayed through a check that marker.isMapped === true.

This PR proposes to display these markers in a separate sidebar on the right side. The design of the entry display in this new sidebar is not final, but the code to display the entries in the sidebar is working.

[mbilker]

I only saw some unmapped police records, but maybe they are older than 30 days now.

[mbilker]

Should I add a media query to hide the unmapped records section on mobile?

[mbilker]

Also, should I make the unmapped records section hideable?

[vonbearshark]

Ideally it should behave just like the other sidebar: shown as closed on mobile with a button to expand/contract on both mobile and desktop

[mbilker]

@vonbearshark I see that the table function now returns HTML in the form of <td> elements. Would it be better to return an array?

[mbilker]

cc @seifriedc ^^

[vonbearshark]

An array? An array of what exactly? The table function is run on each individual cell, not all of them at once, no?

Also, is this ready?

[mbilker]

@vonbearshark The table method returns td elements like:

<td>text</td><td>asdjfa</td><td>jaldsjfla</td>

I was thinking it could return:

['text','asdjfa','jkasjfdl']

[kingsman142]

@mbilker Are you initial commits associated with "displaying invalid markers in a separate sidebar" ready? If so I can merge this PR and we can worry about returning an array of elements for the table in an issue (I think that's where that problem should go).

In that issue, please detail what we would gain from returning an array of elements like you propose.