QuestWordHunter - English Quests panel text

From a full code audit.

**A tooltip could stop the addon working.** Some item and spell ids are marked secret by Blizzard, and reading one taints an addon — after which nothing it does takes effect. Those ids are now checked before they are touched, the same way the NPC path already checked its own.

**One bad tooltip no longer silences the rest of the session.** The guard that stops the addon adding its line twice was left switched on if anything went wrong while adding it, and from then on every tooltip quietly lost its English line.

**The panel stays where you put it when it is not at 100%.** The size was applied after the window had been positioned, and scaling moves a window relative to its anchor. Size is applied first now. Setting the size before you have opened any quest also works — before, the window did not exist yet and the slider appeared to do nothing.

**The addon list no longer promises tooltips on Classic.** There is no spell or NPC name data for Classic — Blizzard publishes none — and the description now says so.