Release 1.4.0

[cadic]

Description of the Change

Release and version bump 1.4.0

Closes #210

Verification Process

Verified manually via VS Code

Checklist:

• I have read the CONTRIBUTING document.
• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have added tests to cover my change.
• All new and existing tests passed.

[jeffpaul]

Looks good, though one question of whether there are updated (or new) screenshots that should be included with this release?

[jeffpaul]

I'm fine with handling the release and then coming back after to fix the release dates in CHANGELOG.md and readme.txt with whatever the eventual release date is. No need to re-submit PR for approval just to change those for release.

[cadic]

Looks good, though one question of whether there are updated (or new) screenshots that should be included with this release?

According to the changelog, we don't have any breaking changes or new features worth documenting with screenshots.

But in the future update, we definitely want to update screenshots:

• We now have "Type of show" dropdown, need to be updated on screenshot-3.png
• We have the "Classic" edit post screen on the screenshot-1.png. Need to add Block Editor screenshot as well (and update classic screenshot to the latest default theme colour palette). Or replace the classic screenshot with the block.

[cadic]

Added a new issue #213

[cadic]

@jeffpaul I've added last-minute security update and changed the release date, I know it wasn't expected, appreciate your quick review again.

[jeffpaul]

looks good, thanks for handling the release!