Bug fixes

- Fix chart in Ai want U
- Mute music on song select with Q
- Do not scroll song select background when the tab is not active
- Fix very short inputs not being recognized
- Fix sound being muted when playing the same song again
- Fix multiplayer when audio latency is set
- Fix getting stuck when imported song cannot be restarted
- Fix 2P cursor when ura is selected by both players
- Add KeyboardEvent.key to browser tests
- Separate buttons like Shift+Left into two on the How to Play page
- Change focused button on the custom songs screen to the first one available
- Add favicon to the admin page
- Display the id on the admin new song page

public/src/js/strings.js

@@ -506,6 +506,33 @@ var translations = {
 			cn: "确定",
 			tw: "確定",
 			ko: "확인"
+		},
+		key: {
+			ctrl: {
+				en: "CTRL"
+			},
+			shift: {
+				en: "⇧ SHIFT"
+			},
+			leftArrow: {
+				en: "\u2190"
+			},
+			rightArrow: {
+				en: "\u2192"
+			},
+			esc: {
+				en: "ESC"
+			},
+			join: {
+				en: "+"
+			},
+			or: {
+				ja: "または",
+				en: " or ",
+				cn: "或",
+				tw: "或",
+				ko: " 또는 "
+			}
 		}
 	},
 	about: {