Add URL parameter support for Bible version

- Read version parameter from URL on page load (?version=esv|?version=nkjv)
- Update URL with version when selection changes
- Enable shareable version-specific URLs like /book/Genesis/chapter/1?version=nkjv

NKJV/23_Isaiah/Chapter_35.md

@@ -13,10 +13,10 @@ The excellency of our God.
 3. Strengthen the weak hands,
 And make firm the feeble knees.
 
-4. Say to those _who are_ fearful-hearted,
+4. Say to those who are fearful-hearted,
 "Be strong, do not fear!
-Behold, your God will come _with_ vengeance,
-_With_ the recompense of God;
+Behold, your God will come with vengeance,
+With the recompense of God;
 He will come and save you."
 
 5. Then the eyes of the blind shall be opened,
@@ -30,19 +30,19 @@ And streams in the desert.
 7. The parched ground shall become a pool,
 And the thirsty land springs of water;
 In the habitation of jackals, where each lay,
-_There shall be_ grass with reeds and rushes.
+There shall be grass with reeds and rushes.
 
 8. A highway shall be there, and a road,
 And it shall be called the Highway of Holiness.
 The unclean shall not pass over it,
-But it _shall be_ for others.
+But it shall be for others.
 Whoever walks the road, although a fool,
 Shall not go astray.
 
 9. No lion shall be there,
-Nor shall _any_ ravenous beast go up on it;
+Nor shall any ravenous beast go up on it;
 It shall not be found there.
-But the redeemed shall walk _there,_
+But the redeemed shall walk there,
 
 10. And the ransomed of the Lord shall return,
 And come to Zion with singing,