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Named back reference: ``` \k ``` Not recognized in Explain session, it only descripts as characters, not back reference function.

Issue on moblie version: Some word will be disappeared if have space char before it each time press space, dot, comma,.. after it. Some time, single char disappeared immediately after...

- Translated new strings. - Fixed some typos. - Corrected translation for some strings. - Revert `Kho lưu trữ` to `Repo`, some Vietnamese need that. https://github.com/Anuken/Mindustry/commit/c3ee92fba701f010b5033aa1d519b6b541d976c2

This will make players less confusing after game's data imported and no message tell them. They will think that is a crash. - [x] I have read the [contribution guidelines](https://github.com/Anuken/Mindustry/blob/master/CONTRIBUTING.md)....

- Minor fixes. - Translate new strings from https://github.com/Anuken/Mindustry/commit/2ab2b03bf8281b31efc08c771acb78f9d8880afc.

Add VNM `server.mindustry-tool.app` to community servers.

- New string from https://github.com/Anuken/Mindustry/commit/e1fb13847b2c797ec568c9e1a3fe2475f1d71603 - Minor fix on `port forwarding` translation.

Changes from https://github.com/Anuken/Mindustry/commit/76f421e171e8702018748d41997ed3001e0623fd