darkirc: add #hackers to autojoin list

bin/darkirc/darkirc_config.toml

@@ -27,6 +27,7 @@
 autojoin = [
     "#dev",
     "#media",
+    "#hackers",
     "#memes",
     "#philosophy",
     "#markets",

bin/darkwallet/Makefile

@@ -35,6 +35,7 @@ android: $(SRC) fonts
 	adb uninstall darkfi.darkwallet
 	adb install $(APK)
 	reset
+	ding 0
 	adb logcat -c
 	adb logcat -v color -s darkfi -s SAPP