CSPELL is checking recipes/readme.txt - change to run in project folder

Whilst making these changes to cspell, we can also use this issue to fix the error that when verbose -v is added in $_CSPELL_EXTRA this is also used in the second cspell command when we create the words file. So we get the verbose text saved to the $WORDS_FILE artifact which is unhelpful, and also gives the wrong count for number of words mis-spelled. The verbose output is not needed twice, so it should be easy to remove '-v' from $_CSPELL_EXTRA before calling the command for the second time.

Also I note that build.env is being checked. This is not a file that is under the control of the project, so we should always skip this.

The empty artifact file _cspell_updated_project_words.txt is being checked on the second run, and there is no need to include this either, as it is just confusing in the log.

Another thing to check is whether all folders are being checked. I am sure this used to be the case, but this recent cspell job only checked 7 files at the top level. It hasCSPELL_SEARCH=$([[ $_CSPELL_EXTRA =~ "--dot" ]] && echo "{**,.**}" || echo "**") and the result is ** as expected. The src and tests folders are shown in the potential list of files but no files in them are checked.

https://git.drupalcode.org/issue/scheduler_content_moderation_integratio...