Multi tools won't reset their modes after server restart

[womzil]

Description

Multi tools reset their mode after server restart. I found it really annoying and so did my players, so I decided to fix that.
This pull request also adds a display of current multi tool mode in its lore.
Feel free to improve my code. I tried to achieve my goal without changing too much stuff, so it shouldn't break anything.

Proposed changes

• Multi tools keep their current mode after server restart
• Current multi tool mode is displayed in its lore (works with already existing multi tools)

Checklist

• I have fully tested the proposed changes and promise that they will not break everything into chaos.
• I have also tested the proposed changes in combination with various popular addons and can confirm my changes do not break them.
• I have made sure that the proposed changes do not break compatibility across the supported Minecraft versions (1.16.* - 1.20.*).
• I followed the existing code standards and didn't mess up the formatting.
• I did my best to add documentation to any public classes or methods I added.
• I have added Nonnull and Nullable annotations to my methods to indicate their behaviour for null values
• I added sufficient Unit Tests to cover my code.

[github-actions]

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[github-actions]

Slimefun preview build

A Slimefun preview build is available for testing!
Commit: 8805e571

https://preview-builds.walshy.dev/download/Slimefun/4073/8805e571

Note: This is not a supported build and is only here for the purposes of testing.
Do not run this on a live server and do not report bugs anywhere but this PR!

[Phoenix-Starlight]

The classes are definitely in need of a refactor, however its out-of-scope IMO. (oops I submitted two reviews)

[WalshyDev]

Just to elevate Jeff's comment, this is currently blocked on - #4073 (comment)

[womzil]

Just to elevate Jeff's comment, this is currently blocked on - #4073 (comment)

I answered, just in case you missed it like I did 😉 - #4073 (comment)

[WalshyDev]

master branches are such a pain to work off 😅

Opened #4122 with my small improvement on top of this change