[LyX/master] Transform simple search dialog to dock widget (#2625)

[Richard Kimberly Heck]

On 2/14/21 12:45 PM, Stephan Witt wrote:
> Am 14.02.2021 um 18:39 schrieb Stephan Witt <st.witt at gmx.net>:
>> Am 14.02.2021 um 17:15 schrieb Juergen Spitzmueller <spitz at lyx.org>:
>>> commit 2baa3a46a6ad3576fc94fa0b915adc30ba2bbdff
>>> Author: Juergen Spitzmueller <spitz at lyx.org>
>>> Date:   Sun Feb 14 17:18:00 2021 +0100
>>>
>>>   Transform simple search dialog to dock widget (#2625)
>>>
>>>   Also solves #8054
>> Hi Jürgen,
>>
>> after this change LyX gets a crash on processing Command-F here.
> The crash is in GuiSearchWidget::findChanged because of bv_ is not initialized and not a nullptr.

I think you can go ahead.

Riki