[Suggestion:] Shorten player names when doing tpaccept or tpdecline

[MrBlasyMSK]

Is your feature request related to a problem? Please describe.
I have seen that to use /tpa it is not necessary to put the full name, but it is necessary to use it in /tpaccept or /tpdecline.
I think it would be great to add the option in which the player could put only the beginning of the name and it would accept it.

Example:

1. The plugin sees that "MrBlasyMSK" has asked tpa to "Steve".
2. Steve uses /tpaccept "Mr"
3. The plugin has to look at the players that have the name with "Mr" and then see which of them has asked for tpa to accept it.
4. It identifies that it was "MrBlasyMSK" and tpa's him to "Steve".

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