docs: make redirects permanent (#19743) (#1899)

Co-authored-by: Alexander Lichter <[email protected]>

Author: kiaking

public/_redirects

@@ -1,9 +1,9 @@
 # temporary, we'll flip this around some day
 https://ja.vitejs.dev/* https://ja.vite.dev/:splat 301!
 
-/guide/api-vite-runtime /guide/api-environment 302
-/guide/api-vite-runtime.html /guide/api-environment 302
-/guide/api-vite-environment /guide/api-environment 302
-/guide/api-vite-environment.html /guide/api-environment 302
-/guide/comparisons /guide/why#how-vite-relates-to-other-unbundled-build-tools 302
-/guide/comparisons.html /guide/why#how-vite-relates-to-other-unbundled-build-tools 302
+/guide/api-vite-runtime /guide/api-environment 301
+/guide/api-vite-runtime.html /guide/api-environment 301
+/guide/api-vite-environment /guide/api-environment 301
+/guide/api-vite-environment.html /guide/api-environment 301
+/guide/comparisons /guide/why#how-vite-relates-to-other-unbundled-build-tools 301
+/guide/comparisons.html /guide/why#how-vite-relates-to-other-unbundled-build-tools 301