Increased key length maximum size to 128 characters

[caronc]

Description:

Related issue (if applicable): refs n/a

Increased key length size from 64 characters to 128. Also fixed a bug enforcing that keys specified are ignored if longer.

Checklist

• [x] The code change is tested and works locally.
• [x] There is no commented out code in this PR.
• [x] No lint errors (use flake8)
• [x] Tests added

[codecov-commenter]

Codecov Report

All modified lines are covered by tests :white_check_mark:

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Files	Coverage Δ
apprise_api/api/tests/test_add.py	100.00% <100.00%> (ø)
apprise_api/api/tests/test_del.py	100.00% <100.00%> (ø)

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