Auto merge of #54575 - pietroalbini:rollup, r=pietroalbini

Rollup of 12 pull requests

Successful merges:

 - #53518 (Add doc for impl From in char_convert)
 - #54058 (Introduce the partition_dedup/by/by_key methods for slices)
 - #54281 (Search box)
 - #54368 (Reduce code block sides padding)
 - #54498 (The project moved under the Mozilla umbrella)
 - #54518 (resolve: Do not block derive helper resolutions on single import resolutions)
 - #54522 (Fixed three small typos.)
 - #54529 (aarch64-pc-windows-msvc: Don't link libpanic_unwind to libtest.)
 - #54537 (Rename slice::exact_chunks() to slice::chunks_exact())
 - #54539 (Fix js error)
 - #54557 (incr.comp.: Don't automatically enable -Zshare-generics for incr. comp. builds.)
 - #54558 (Improvements to finding LLVM's FileCheck)

Failed merges:

r? @ghost