Avoid database error when switching type of token

What's Changed

• [BUGFIX] Avoid database error when switching type of token by @brotkrueml in #125
• [BUGFIX] Avoid undefined array key error when saving scheduler task by @brotkrueml in #126
• [TASK] Remove outdated dividers2tab from TCA configurations by @brotkrueml in #127
• [TASK] Add .gitattributes file by @brotkrueml in #128
• [DOCS] Adjust documentation according to new guide by @brotkrueml in #129
• [RELEASE] Prepare for version ''3.1.4'' by @MattiasNilsson in #130

New Contributors

• @brotkrueml made their first contribution in #125

All of this was possible because of @brotkrueml, bit thanks for all your help!

Full Changelog: 3.1.3...3.1.4