docs: add beginner-friendly example for useInsertionEffect (#8118) #8122
+55
−16
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This PR adds a simple introductory example to the useInsertionEffect documentation.
The example injects a <style> tag before the browser paints, helping readers understand when useInsertionEffect runs relative to layout and regular effects.
This makes it easier for beginners to grasp the concept before moving on to advanced CSS-in-JS examples.
Fixes: #8118