Add support for Floorp Browser

I recently started using BleachBit because Ccleaner has completely lost its mind and became unusable.
I see that BleachBit supports several Firefox-based browsers such as LibreWolf, Waterfox, and Zen which is great, but I suggest adding support for Floorp Browser as well.
Floorp is a browser that has gained popularity recently and is seeing a growing user base.