Add Insert and Tilde to keyboard mapping (#1107)

Tilde was actually already there, just labelled in a way people might
not expect. This commit elaborates on the label for that keycode to make
it a bit more obvious.

www/src/Data/Keyboard.js

@@ -41,7 +41,7 @@ export const KEY_CODES = [
 	{ label: 'Arrow Left', value: 0x50 },
 	{ label: 'Arrow Right', value: 0x4f },
 	{ label: 'Arrow Up', value: 0x52 },
-	{ label: 'Backquote', value: 0x35 },
+	{ label: 'Backquote (Grave/Tilde)', value: 0x35 },
 	{ label: 'Backslash', value: 0x31 },
 	{ label: 'Backspace', value: 0x2a },
 	{ label: 'Bracket Left', value: 0x2f },
@@ -88,6 +88,7 @@ export const KEY_CODES = [
 	{ label: 'F22', value: 0x71 },
 	{ label: 'F23', value: 0x72 },
 	{ label: 'F24', value: 0x73 },
+	{ label: 'Insert', value: 0x49 },
 	{ label: 'Home', value: 0x4a },
 	{ label: 'Intl Backslash', value: 0x31 },
 	{ label: 'A', value: 0x04 },