https://github.com/user-attachments/assets/49e8a176-899c-43fd-a931-6e04ab5b5efb
#### Brief overview of PR changes/additions
New opt-in profile option that rejoins lines the game hard-wrapped
itself, so triggers see the whole logical line and Mudlet's own wrapping
handles display. Enable in Settings → Main display, or
`setConfig("undoServerWrap", true)`. Prompts, blank lines, MXP `<br>`
and script-fed text never join, and prose/indentation gates keep ASCII
art, menus and tables intact. A one-time callout points the option out,
and games that look like they wrap raise a one-time hint with a
click-to-enable link.
#### Motivation for adding to Mudlet
On games that can't disable server-side wrapping, triggers need fragile
multiline patterns. This fixes it client-side - as far as we know, a
first among MUD clients.
#### Other info (issues closed, discussion etc)
Tests added.
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Signed-off-by: Vadim Peretokin <vadim.peretokin@mudlet.org>
