v5.13.1 - Fix MiniMessage bug which affects material name colors

[AlessioGr]

• [!] Finally fix lang tags being invisible inside custom gradient tags if they are not wrapped in a solid color. This removes the hard-coded blue color for translated material names and thus allows for more customization.

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This discussion was created from the release v5.13.1 - Fix MiniMessage bug which affects material name colors.