Implementing preview improvement for Fuzzier using Junie

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Iteration 1

Excellent

Prompt

Add CTRL + D and CTRL + U keybindings to the main and secondary search field in FuzzyFinderComponent

Result

Nothing to complain about, it also included a working action, which moves half page on the result list.

Even though it overreached, I think the result warrants an excellent grade.

Iteration 2

Excellent

Prompt

Implement the function movePreviewHalfPage for FuzzyFinderComponent

Result

Yup, easy as that.

Iteration 3

Okay

Prompt

Create simple tests for the listeners created at setupCtrlDUShortcuts

Result

Too much complexity, but I did see that coming.