clipboard preview with syntax support

Config/ClipboardConfig.qml

@@ -8,6 +8,8 @@ JsonObject {
 
 	component Sizes: JsonObject {
 		property int itemHeight: 60
+		property int minPreviewWidth: 200
+		property int previewWidth: 500
 		property int width: 500
 	}
 }

Config/Config.qml

@@ -123,6 +123,8 @@ Singleton {
 			maxEntriesShown: clipboard.maxEntriesShown,
 			sizes: {
 				width: clipboard.sizes.width,
+				previewWidth: clipboard.sizes.previewWidth,
+				minPreviewWidth: clipboard.sizes.minPreviewWidth,
 				itemHeight: clipboard.sizes.itemHeight
 			}
 		};