Fix shortcut for Rename operates on wrong line/address (#2631)

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Detailed description

This change resolves issue #2631, where rename using shortcut operates on wrong line/address.

Problem
When a user uses shortcut for renaming(N) a function and using seek bar, seeks to a address which triggers on_seekChanged and cursor position is updated but setCurHighlightedWord which updates renaming options is not used.

Fix
This modification adds setCurHighlightedWord at current cursor so it correctly triggers renaming options.

Test plan (required)
The following is example of this bug:

before.mp4

After modification, now after seek it correctly renames line/function

after.mp4

Closing issues
closes #2631