Create separate dropdown options for searching for games by different attributes

[ptlin25]

Currently, the search bar supports searching for games by the game's name, the producer's name, the artist/designer's name, or category. The search bar should support searching for games by mechanic which needs to be added. However, at this point, it can be confusing why these options are bundled up into one. For example, a user wants to search by the game's name but gets a bunch of matches to the game's producer name. Instead, we should improve the search bar by separating these search methods. Instead of having just the "Games" option, there should be an option for "Games – by Name" to search for games by name, "Games – by Producer" to search for games by the producers name, "Games – by Category" to search for games by the category, and so on.