Clean up PublicationFieldTypes enum

[caendesilva]

Major changes:

• Rename PublicationFieldTypes enum case Image to Media
• Sort enum cases by ease of access (more or less)
• Remove numeric rule from integer field type
• Add string to default media type rules

[codecov]

Codecov Report

Merging #833 (7afafad) into publications-feature (e14072e) will not change coverage.
The diff coverage is n/a.

❗ Current head 7afafad differs from pull request most recent head e374f4d. Consider uploading reports for the commit e374f4d to get more accurate results

@@                    Coverage Diff                     @@
##             publications-feature      #833     +/-   ##
==========================================================
  Coverage                  100.00%   100.00%             
+ Complexity                   3060      1530   -1530     
==========================================================
  Files                         344       172    -172     
  Lines                        7638      3819   -3819     
==========================================================
- Hits                         7638      3819   -3819     

Impacted Files	Coverage Δ
...ckages/publications/src/Validation/BooleanRule.php	100.00% <0.00%> (ø)
...publications/src/Actions/SeedsPublicationFiles.php
...ications/src/Actions/ValidatesPublicationField.php
...blications/src/Commands/MakePublicationCommand.php
.../publications/src/Models/PublicationFieldValue.php
...ackages/publications/src/PublicationFieldTypes.php
...ckages/publications/src/Validation/BooleanRule.php
...src/Framework/Exceptions/FileNotFoundException.php
...amework/src/Framework/Concerns/InvokableAction.php
...amework/src/Framework/Services/MarkdownService.php
... and 163 more

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