[EN/ZH] Add / Update `Guides/Audio editing`

[CloneWith]

Self-check

• [x] The changes are tested against the contribution checklist
• [x] (translations only) The changes are reviewed on GitHub by a fluent speaker
• [ ] Export changes to Simplified Chinese translation

Changes

• Clarify the version of softwares the article is using
• Simplify description

Changed files

• M /wiki/Guides/Audio_editing/en.md
  • A /wiki/Guides/Audio_editing/zh.md

[TicClick]

(also, what does your "Sync changes with the English article" checkbox mean -- is there still something you wanted to backport from Chinese to English and forgot?)

[CloneWith]

what does your "Sync changes with the English article" checkbox mean

The Chinese translation reflects the original content before this PR. This step will be completed once I have the English article cleaned up.

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Uh I seem not to explain it clearly, so I changed it.

[CloneWith]

you need to either make a small section dedicated to the export procedure, or keep duplicated steps as below in the mp3directcut part of the article

some issues encountered when setting mp3DirectCut up:

• It complains ACM not found, even after I installed this library
• For LAME library, I'm unsure about which bitrate to use (Constant, Variable, Average) and which is used by our RC
• It only runs on Windows (requires x86 libraries) and Android, and hasn't been updated since 2022/01
• If we have the need to change the bitrate, we need either of the two libraries mentioned above

It seems kinda unfriendly for regular mappers. Maybe there is a better approach to edit MP3 files, but I'll try to update the current ones first.