Added search by author

[Monsterovich]

#3829 (comment)

[vaut]

Are there any plans to add other filters?

[Monsterovich]

Are there any plans to add other filters?

I think we should stop at author for now, because the other fields besides the map name are not so necessary.

In addition, I am limited by the UI library capabilities, for filters on the screenshot normally we need to make new UI widgets (and there is no space for them too).

Also, I don't think some information, like the amount of oils for each player, is in the metadata and it should be calculated somehow.

[past-due]

Additional filters are something that probably needs to wait for a larger map browser UI refresh (and a new backing store). There simply isn't enough room or ability to adjust the current map browser UI as-is.