ref(platform): Update sidebar components structure

[mydea]

This was a bit tricky to follow/understand, and should hopefully be clearer now.

I noticed this while trying to change some sidebar styling, that this is pretty hard to reason about.

Now, this PR:

• Removes options on DynamicNav that were not actually used anymore at all
• Combines withChevron and collapse into a single collapsible property, as we always use this together anyhow (except in one place in develop docs, where IMHO it is fine to also be consistent...)
• Removed this construct where we passed in the header class name - we can just import the style directly there, making this consistent and easier to understand/style.
• Removed one code path in DynamicNav handling if no parentNode exists - this is never the case as far as I can tell, we can just bail out in this theoretical case.

[vercel]

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Name	Status	Preview	Comments	Updated (UTC)
develop-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Apr 10, 2025 0:41am
sentry-docs	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Apr 10, 2025 0:41am

1 Skipped Deployment

Name	Status	Preview	Comments	Updated (UTC)
changelog	⬜️ Ignored (Inspect)	Visit Preview		Apr 10, 2025 0:41am

[codecov]

Bundle Report

Changes will decrease total bundle size by 600 bytes (-0.0%) ⬇️. This is within the configured threshold ✅

Detailed changes

Bundle name	Size	Change
sentry-docs-server-cjs	11.13MB	-552 bytes (-0.0%) ⬇️
sentry-docs-client-array-push	9.47MB	-48 bytes (-0.0%) ⬇️

Affected Assets, Files, and Routes:

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

Assets Changed:

Asset Name	Size Change	Total Size	Change (%)
1729.js	-3 bytes	1.75MB	-0.0%
../instrumentation.js	-3 bytes	1.08MB	-0.0%
9523.js	-3 bytes	1.05MB	-0.0%
2065.js	-543 bytes	81.96kB	-0.66%

Files in 2065.js:

• ./src/components/sidebar/productSidebar.tsx → Total Size: 3.83kB

• ./src/components/sidebar/developDocsSidebar.tsx → Total Size: 3.89kB

• ./src/components/sidebar/index.tsx → Total Size: 5.16kB

• ./src/components/sidebar/sidebarLinks.tsx → Total Size: 3.24kB

• ./src/components/sidebar/platformSidebar.tsx → Total Size: 1.97kB

• ./src/components/sidebar/dynamicNav.tsx → Total Size: 4.46kB

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	868.7kB	-0.0%
static/css/*.css	-42 bytes	739.63kB	-0.01%
static/chunks/8165-*.js	-3 bytes	410.1kB	-0.0%
server/middleware-*.js	5.55kB	6.55kB	555.3% ⚠️
server/middleware-*.js	-5.55kB	1.0kB	-84.74%
static/ORkklmCyFAxxajSwDtZAo/_buildManifest.js (New)	578 bytes	578 bytes	100.0% 🚀
static/ORkklmCyFAxxajSwDtZAo/_ssgManifest.js (New)	77 bytes	77 bytes	100.0% 🚀
static/aRhJvd66kodZMKjNbnYSw/_buildManifest.js (Deleted)	-578 bytes	0 bytes	-100.0% 🗑️
static/aRhJvd66kodZMKjNbnYSw/_ssgManifest.js (Deleted)	-77 bytes	0 bytes	-100.0% 🗑️

[chargome]

Looks good, thank you!