architecture nav minor refactor

Author: LandauRaz

components/Starknet/modules/architecture-and-concepts/nav.adoc

@@ -2,9 +2,9 @@
     ** xref:accounts.adoc[Accounts]
     ** xref:blocks.adoc[]
     ** xref:cryptography.adoc[Cryptography]
+    ** xref:data-availability.adoc[Data availability]
     ** xref:fees.adoc[Fees]
     ** xref:messaging.adoc[L1-L2 messaging]
-    ** xref:data-availability.adoc[Data availability]
     ** xref:staking.adoc[Staking]
     ** xref:state.adoc[State]
     ** xref:economics-of-starknet.adoc[Tokenomics]