Version 2.5.0

• Add application icons to sidebar (#405 via #602) by @mateuscelio
• Add listen on unix sockets (#237 via #621) by @LaurenceJJones
• Log x-forwarded-for in request log (#554 via #624) by @LaurenceJJones
• Don't disable the refresh button when there are no messages (#636 via #637) by @iarp
• Show loading animation when loading messages (#658 via #660) by @MexHigh
• Update backend dependencies (#661)