Use bodyText2 only if there's no style passed in parameters

[Tumist76]

Use of bodyText2 as a base style every time had led to some inconsistencies in text rendering in our case. I made bodyText2 usage conditional - only when there's no style passed.

Furthermore, I've added more granular control over MouseRegion usage as it may be not necessary in some cases and added more problems to text rendering when using Text.rich().

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:white_check_mark: Tumist76
:x: Cretezy
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