Implement fading alerts

Modules/Config.lua

@@ -1390,6 +1390,21 @@ function shared.Config.Init()
                 end
             end)
         minimapTaggerConfigFrame:Add(masterChannel, 2, 6)
+
+        local ttl = CreateBasicSmallEditBox("HeimdallMinimapTaggerConfigTTL",
+            minimapTaggerConfigFrame.frame, "TTL",
+            Heimdall_Data.config.minimapTagger.ttl,
+            function(self)
+                local text = self:GetText()
+                if string.match(text, "%d+") then
+                    Heimdall_Data.config.minimapTagger.ttl = tonumber(text)
+                    print("TTL set to", tostring(text))
+                else
+                    print("Invalid ttl", tostring(text))
+                    self:SetText(Heimdall_Data.config.minimapTagger.ttl)
+                end
+            end)
+        minimapTaggerConfigFrame:Add(ttl, 2, 6)
     end
 
     -- Whisper Notify