fix(map): completed/accepted/repeatable available-quest pins (#7 #9 #10)

#7: Completed quests kept showing as available '!'. The server completed-
quest list arrives async via QUEST_QUERY_COMPLETE, often after available
quests were first drawn. Recalculate available quests once char.complete is
populated by that event so completed quests are removed (also clears the
already-completed subset of #8).

#9: An accepted quest's available '!' could linger on the minimap until
/reload. UnloadQuestFramesByDataType unloaded the frame but left its name in
questIdFrames and _G; it now removes those references so the icon is torn
down immediately on both map and minimap.

#10: Added 'Hide repeatable quests below level 60' (Icons tab, off by
default) to hide repeatable available quests (e.g. the Ascension Callboard)
from map/minimap until level 60. Enforced in _DrawQuestIfAvailable and
ShouldBeHidden so existing minimap pins are removed too; reappear at 60.

Lint: selene 0 errors. Tests: 145 successes / same 7 pre-existing failures.

Modules/Map/QuestieMap.lua

@@ -129,9 +129,14 @@ end
 
 function QuestieMap:UnloadQuestFramesByDataType(questId, dataType)
     if QuestieMap.questIdFrames[questId] then
-        for _, frame in pairs(QuestieMap:GetFramesForQuest(questId)) do
+        for name, frame in pairs(QuestieMap:GetFramesForQuest(questId)) do
             if frame and frame.data and frame.data.Type == dataType then
                 frame:Unload()
+                -- Also drop the registry/global reference. Without this the frame name
+                -- lingered in questIdFrames and _G, so the available '!' could stay on the
+                -- minimap after a quest was accepted until a full /reload rebuilt frames. (#9)
+                QuestieMap.questIdFrames[questId][name] = nil
+                _G[name] = nil
             end
         end