Add text fix, minor polish to Controlled Burn

[JovialFeline]

These are some changes prompted by feedback from Henskelion on the discord. The main aim was a timely translation fix, so the changes are light.

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Fixed some text that was left untranslated after the strings were extracted.

Once all structures in the main base (aside from sarin plants) are killed or captured, USSR's units will hunt to speed up the ending.

• This is not original behavior for the map, but this or fire sales are common with "Destroy all X" objectives.
• Idle harvesters won't need to be killed to "Destroy the enemy compound." I figure that lines up with the earlier BadGuy change.

The Allies' signal flare is announced, as in the original.

Fixed the linter's complaint about GroundWavesDelays being used as a table and integer.

[JovialFeline]

• Patrolling USSR units should now act on the finishing hunt immediately.
• Harvesters removed as required kills through map rules rather than the Lua script. This affects the player too, but a handful of trucks are unlikely to win on their own.
• Closed a PR by mistake with an empty push, again.

[JovialFeline]

The finishing hunt now uses IdleHunt instead of a Hunt order.

[PunkPun]

LGTM

[Mailaender]

8b3e7be

[Mailaender]

Changelog