[Joy] use textColor prop for Typography and Link

[siriwatknp]

Joy will follow the approach. This will give the same experience throughout the components.

Usage

<Typography color="primary" variant="soft" /> // the combination of variant and color palette
<Link color="success" variant="soft" /> // the combination of variant and color palette

<Typography textColor="neutral.500" /> // CSS color prop, similar to `sx={{ color: 'neutral.500' }}`
<Link textColor="neutral.500" /> // CSS color prop, similar to `sx={{ color: 'neutral.500' }}`

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• I have followed (at least) the PR section of the contributing guide.

[mui-bot]

Details of bundle changes

@mui/joy: parsed: +0.34% , gzip: +0.28%

Generated by 🚫 dangerJS against f588c05