Fix some codemod bugs

[jerelmiller]

While trying the codemod on the Spotify showcase repo, I found some bugs in the existing codemod. This fixes two issues:

• If the document remains unchanged by the codemod (i.e. there are no fragment spreads to add @unmask to), keep it unchanged
• Simplify the whitespace formatting. There were too many edge cases trying to maintain the original whitespace per-line from the original document since the print function removes whitespace-only lines. Instead this is replaced by indenting each line by the same amount, determine by how much the first non-whitespace character was indented.

Unfortunately the GraphQL printer cannot and does not handle comments, so these are always removed.

[svc-apollo-docs]

✅ Docs Preview Ready

No new or changed pages found.

[changeset-bot]

🦋 Changeset detected

Latest commit: d004ca0

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

This PR includes changesets to release 1 package

Name	Type
@apollo/client	Patch

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[jerelmiller]

You can try this version with the following compiled script:

https://raw.githubusercontent.com/apollographql/apollo-client/bef31260ce2262877059416fa8ecade719850788/scripts/codemods/data-masking/unmask.js

[pkg-pr-new]

npm i https://pkg.pr.new/@apollo/client@12126

commit: b2f2884

[github-actions]

size-limit report 📦

Path	Size
dist/apollo-client.min.cjs	40.6 KB (0%)
import { ApolloClient, InMemoryCache, HttpLink } from "dist/main.cjs"	50.98 KB (0%)
import { ApolloClient, InMemoryCache, HttpLink } from "dist/main.cjs" (production)	47.56 KB (0%)
import { ApolloClient, InMemoryCache, HttpLink } from "dist/index.js"	36.31 KB (0%)
import { ApolloClient, InMemoryCache, HttpLink } from "dist/index.js" (production)	33.56 KB (0%)
import { ApolloProvider } from "dist/react/index.js"	1.26 KB (0%)
import { ApolloProvider } from "dist/react/index.js" (production)	1.24 KB (0%)
import { useQuery } from "dist/react/index.js"	5.21 KB (0%)
import { useQuery } from "dist/react/index.js" (production)	4.3 KB (0%)
import { useLazyQuery } from "dist/react/index.js"	5.71 KB (0%)
import { useLazyQuery } from "dist/react/index.js" (production)	4.78 KB (0%)
import { useMutation } from "dist/react/index.js"	3.62 KB (0%)
import { useMutation } from "dist/react/index.js" (production)	2.85 KB (0%)
import { useSubscription } from "dist/react/index.js"	4.43 KB (0%)
import { useSubscription } from "dist/react/index.js" (production)	3.48 KB (0%)
import { useSuspenseQuery } from "dist/react/index.js"	5.51 KB (0%)
import { useSuspenseQuery } from "dist/react/index.js" (production)	4.17 KB (0%)
import { useBackgroundQuery } from "dist/react/index.js"	5.01 KB (0%)
import { useBackgroundQuery } from "dist/react/index.js" (production)	3.66 KB (0%)
import { useLoadableQuery } from "dist/react/index.js"	5.09 KB (0%)
import { useLoadableQuery } from "dist/react/index.js" (production)	3.74 KB (0%)
import { useReadQuery } from "dist/react/index.js"	3.42 KB (0%)
import { useReadQuery } from "dist/react/index.js" (production)	3.36 KB (0%)
import { useFragment } from "dist/react/index.js"	2.33 KB (0%)
import { useFragment } from "dist/react/index.js" (production)	2.28 KB (0%)

[phryneas]

Tested with the examples folder, the results look good :)