Use this function before [method@SearchSettings.
set_search_text], to unescape the following sequences of characters: `\n`, `\r`, `\t` and `\\`. The purpose is to easily write those characters in a search entry.
Note that unescaping the search text is not needed for regular expression searches.
See also: [func@utils_escape_search_text].
text |
the text to unescape. |
the unescaped |