chore: remove usage of deprecated `.defaultProps`

[tourman]

This PR:

• removes usage of deprecated .defaultProps from all components
• replaces getElementType() with getComponentType() as getElementType() relied on presence of .defaultProps
• updates unit tests to not use .defaultProps

Fixes #4426.

---

@layershifter please take a look at the basic changes on https://github.com/Semantic-Org/Semantic-UI-React/issues/4426. If you are fine with them, I'll proceed with the tests. You can review it with the hidden whitespace.

• The entries of .defaultProps are replaced with function getDefaultProps() to ensure minimum code changes. As the linter rule no-use-before-define forbids using functions before their declarations, I've taken the rule using eslint --print-config and modified it to pass the validation.
• Instead of using the default arguments, I've suggested the solution with _.defaults as the props may be used in children functions/components.

[tourman]

@layershifter oh I see now, that you'd prefer _.defaults instead of just defaults style, using Lodash.

[layershifter]

@tourman thanks for contributing ❤️ It's one of the issue that prevents me from shipping the next beta. However, I am more leaning towards changes proposed in https://github.com/Semantic-Org/Semantic-UI-React/issues/4426#issuecomment-1695396294. To me getDefaultProps() and _.defaults() looks like additional complexity and code debt. WDYT?

[codecov[bot]]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Comparison is base (e243fa4) 99.51% compared to head (77f7953) 99.50%.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## master #4449 +/- ## ========================================== - Coverage 99.51% 99.50% -0.01% ========================================== Files 186 186 Lines 3512 3466 -46 ========================================== - Hits 3495 3449 -46 Misses 17 17 ```

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