Fix: Remove Batch from API options, set to true by default

[reglim]

It doesn't make sense to expose the Batch option, which, if false enables input from stdin for gpg passphrases, which blocks the api thread. Because of this, I removed the option, and set it to true by default.

Requirements

All new code should be covered with tests, documentation should be updated. CI should pass.

Description of the Change

• Remove Batch option
• Set Batch to true internally

Why this change is important?

So the API can't get hung up because a user tries to sign a publish with a key that requires a passphrase he didn't provide in the request.

Checklist

• [ ] unit-test added (if change is algorithm)
• [ ] functional test added/updated (if change is functional)
• [ ] man page updated (if applicable)
• [ ] bash completion updated (if applicable)
• [x] documentation updated
• [x] author name in AUTHORS

[codecov[bot]]

Codecov Report

Merging #1208 (8be8a47) into master (1df8cff) will decrease coverage by 0.03%. Report is 4 commits behind head on master. The diff coverage is 44.44%.

:exclamation: Current head 8be8a47 differs from pull request most recent head 519747a. Consider uploading reports for the commit 519747a to get more accurate results

@@            Coverage Diff             @@
##           master    #1208      +/-   ##
==========================================
- Coverage   65.99%   65.97%   -0.03%     
==========================================
  Files         143      143              
  Lines       16196    16192       -4     
==========================================
- Hits        10688    10682       -6     
- Misses       4754     4758       +4     
+ Partials      754      752       -2     

Files Changed	Coverage Δ
api/publish.go	0.00% <0.00%> (ø)
deb/graph.go	0.00% <0.00%> (ø)
pgp/internal.go	57.86% <ø> (ø)
api/task.go	42.15% <100.00%> (ø)
deb/import.go	76.50% <100.00%> (+0.92%)	:arrow_up:

... and 1 file with indirect coverage changes

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