Outline dashboard model

modules/webapp/src/main/elm/Data/Box.elm

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+module Data.Box exposing (Box)
+
+import Data.BoxContent exposing (BoxContent)
+
+
+type alias Box =
+    { name : String
+    , visible : Bool
+    , decoration : Bool
+    , colspan : Int
+    , content : BoxContent
+    }

modules/webapp/src/main/elm/Data/BoxContent.elm

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+module Data.BoxContent exposing (BoxContent(..), MessageData, QueryData, SummaryData)
+
+import Data.ItemArrange exposing (ItemArrange)
+
+
+type BoxContent
+    = BoxUpload
+    | BoxMessage MessageData
+    | BoxQuery QueryData
+    | BoxSummary SummaryData
+
+
+type alias MessageData =
+    { title : String
+    , body : String
+    }
+
+
+type alias QueryData =
+    { query : String
+    , view : ItemArrange
+    }
+
+
+type alias SummaryData =
+    { query : String
+    }

modules/webapp/src/main/elm/Data/Dashboard.elm

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+module Data.Dashboard exposing (Dashboard)
+
+import Data.Box exposing (Box)
+
+
+type alias Dashboard =
+    { name : String
+    , columns : Int
+    , boxes : List Box
+    }