Add CSB version support to version selector, app routing, and Dockerfile

CSB/19_Psalms/Chapter_47.md

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+Psalm 47God Our King
+
+1. Clap your hands, all you peoples;
+shout to God with a jubilant cry.
+
+2. For 
+the Lord, the Most High, is awe-inspiring,
+a great King over the whole earth.
+
+3. He subdues peoples under us
+and nations under our feet.
+
+4. He chooses for us our inheritance--
+the pride of Jacob, whom he loves.Selah
+
+5. God ascends among shouts of joy,
+the Lord, with the sound of a ram's horn.
+
+6. Sing praise to God, sing praise;
+sing praise to our King, sing praise!
+
+7. Sing a song of wisdom,
+for God is King of the whole earth.
+
+8. God reigns over the nations;
+God is seated on his holy throne.
+
+9. The nobles of the peoples have assembled
+with the people of the God of Abraham.
+For the leaders of the earth belong to God;
+he is greatly exalted.
+
+
+
+