Merge bitcoin/bitcoin#21727: refactor: Move more stuff to blockstorage

fa09a9eac8 style: Add { } to multi-line if (MarcoFalke)
fadafab833 move-only: Move functions to blockstorage (MarcoFalke)
fa7e64d586 move-only: Move constants to blockstorage (MarcoFalke)
fa247a327f refactor: Move block storage globals to blockstorage (MarcoFalke)
fa81c30c6f refactor: Move pruning/reindex/importing globals to blockstorage (MarcoFalke)

Pull request description:

  See #21575

ACKs for top commit:
  Sjors:
    ACK fa09a9eac8
  kiminuo:
    ACK fa09a9e
  laanwj:
    Code review ACK fa09a9eac8
  promag:
    Code review ACK fa09a9eac8. Since last review

Tree-SHA512: 2eb6962ff44da6b77f3058fc02ec66ab742e25ae8dcc8ec62b062896571910d43ca7c4bb16fb3ccb5e5245195b8dec6384b6c8d442fa97ca28d93bdff347d677

test/lint/lint-locale-dependence.sh

@@ -43,7 +43,7 @@ KNOWN_VIOLATIONS=(
     "src/dbwrapper.cpp.*stoul"
     "src/dbwrapper.cpp:.*vsnprintf"
     "src/httprpc.cpp.*trim"
-    "src/init.cpp:.*atoi"
+    "src/node/blockstorage.cpp:.*atoi"
     "src/qt/rpcconsole.cpp:.*atoi"
     "src/rest.cpp:.*strtol"
     "src/test/dbwrapper_tests.cpp:.*snprintf"