ref(grouping): Small tweaks to fingerprint rules doc

[lobsterkatie]

This is a small cleanup of the fingerprinting rules docs, pulled out of an upcoming PR in order to make it easier to review.

• Update GH link to fingerprinting grammar.
• Alphabetize non-utility fingerprinting variables.
• Add introductory sentence identifying utility matchers.

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
sentry-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Jun 26, 2025 9:38pm

1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
develop-docs	⬜️ Ignored (Inspect)			Jun 26, 2025 9:38pm

[codecov]

Bundle Report

Changes will decrease total bundle size by 15 bytes (-0.0%) ⬇️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
sentry-docs-server-cjs	10.93MB	-9 bytes (-0.0%) ⬇️
sentry-docs-client-array-push	9.8MB	-6 bytes (-0.0%) ⬇️

Affected Assets, Files, and Routes:

view changes for bundle: sentry-docs-client-array-push

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
static/chunks/pages/_app-*.js	-3 bytes	873.24kB	-0.0%
static/chunks/7750-*.js	-3 bytes	415.85kB	-0.0%
server/middleware-*.js	5.55kB	6.55kB	555.3% ⚠️
server/middleware-*.js	-5.55kB	1.0kB	-84.74%
static/Oy-*.js (New)	77 bytes	77 bytes	100.0% 🚀
static/Oy-*.js (New)	684 bytes	684 bytes	100.0% 🚀
static/uFTnPckAujSl8IRZFTBwM/_buildManifest.js (Deleted)	-684 bytes	0 bytes	-100.0% 🗑️
static/uFTnPckAujSl8IRZFTBwM/_ssgManifest.js (Deleted)	-77 bytes	0 bytes	-100.0% 🗑️

view changes for bundle: sentry-docs-server-cjs

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
1729.js	-3 bytes	1.64MB	-0.0%
../instrumentation.js	-3 bytes	973.36kB	-0.0%
9523.js	-3 bytes	949.31kB	-0.0%