Stabilize unstable_dataStrategy

[brophdawg11]

Replaces half of #11891

The following can be used to replay these changes in the v6 branch:

for F in $(find . -type f -not -path "./node_modules/*" -not -path "./.git/*" -not -path "./examples/*" -not -path "./.changeset/*" -not -name "CHANGELOG.md" -not -name "*.png" -not -name "*.jpeg" -not -name "*.ico"); do
  sed -i '' 's/unstable_DataStrategy/DataStrategy/g' $F; 
  sed -i '' 's/unstable_dataStrategy/dataStrategy/g' $F; 
  sed -i '' 's/data as unstable_data,/data,/g' $F; 
  sed -i '' 's/unstable_data/data/g' $F; 
  sed -i '' 's/data as data/data/g' $F; 
done

[changeset-bot]

🦋 Changeset detected

Latest commit: c817ed5

The changes in this PR will be included in the next version bump.

This PR includes changesets to release 9 packages

Name	Type
react-router	Major
@react-router/architect	Major
@react-router/cloudflare	Major
@react-router/dev	Major
react-router-dom	Major
@react-router/express	Major
@react-router/node	Major
@react-router/serve	Major
@react-router/remix-v2-routes	Major

Not sure what this means? Click here to learn what changesets are.

Click here if you're a maintainer who wants to add another changeset to this PR