Initial install QOL

To achieve better user experience on module install, we need to add main page content block, so users don't see an empty transform array on clean installs.

config/install/transform_api.entity_transform_mode.node.full.yml

+status: true
+dependencies:
+  module:
+    - node
+id: node.full
+label: 'Full content'
+description: ''
+targetEntityType: node
+cache: true