Fix icons.

The moon icon seems to make more sense for night time.
Add a datetime icon so you get a clock when using datetime.
Change the CPU icon to the microchip character.

themes/icons/awesome-fonts.json

@@ -5,8 +5,9 @@
 	},
 	"date": { "prefix": ""	},
 	"time": { "prefix": "" },
+	"datetime": { "prefix": "" },
 	"memory": { "prefix": "" },
-	"cpu": { "prefix": "" },
+	"cpu": { "prefix": "" },
 	"disk": { "prefix": "" },
 	"dnf": { "prefix": "" },
 	"pacman": { "prefix": "" },
@@ -79,7 +80,7 @@
 		"on": { "prefix": " "}, "off": { "prefix": " " }
 	},
 	"redshift": {
-		"day": { "prefix": "" }, "night": { "prefix": "" }, "transition": { "prefix": "" }
+		"day": { "prefix": "" }, "night": { "prefix": "" }, "transition": { "prefix": "" }
 	},
   "sensors": {
     "prefix": ""