Operator battle voices: the official combat lines play by voice slot during battles, one at a time (#73)

Deploy, skill and result lines come from the operators' official voice slots; a newer line takes the channel over (stale callbacks of the replaced line no longer release it), and the result line is spoken by an operator of the player's own battle. Contributed by @Convey123.

public/js/ui/components.js

@@ -66,6 +66,7 @@ export const ICONS = {
   info: { d: 'M12 2a10 10 0 1 1 0 20 10 10 0 0 1 0-20zm-1 8v7h2v-7zm0-3v2h2V7z', eo: true },
   warn: { d: 'M12 2 1 21h22zm-1 7v6h2V9zm0 7.5v2h2v-2z', eo: true },
   play: { d: 'M7 4v16l13-8z' },
+  mic: { d: 'M12 14a3 3 0 0 0 3-3V5a3 3 0 0 0-6 0v6a3 3 0 0 0 3 3zm5-3a5 5 0 0 1-10 0H5a7 7 0 0 0 6 6.9V21H8v2h8v-2h-3v-3.1A7 7 0 0 0 19 11z' },
   edit: { d: 'M3 17.2V21h3.8l11-11-3.8-3.8zM20.7 7.1a1 1 0 0 0 0-1.4l-2.4-2.4a1 1 0 0 0-1.4 0l-1.8 1.8 3.8 3.8z' },
   sword: { d: 'M20 3h1v4L10.4 17.6l1.4 1.4-1.4 1.4-2.1-2.1-3.5 3.5-1.4-1.4 3.5-3.5L4.8 14.8l1.4-1.4 1.4 1.4L18 4z' },
   shield: { d: 'M12 2 4 5v6c0 5 3.4 9.3 8 11 4.6-1.7 8-6 8-11V5z' },