Add avo MFA reset admin action & view of audit entries

[segiddins]

Based on #3417

Still need to:

• Move logic out of erb & into component
• Add new component for object diff
• Add separate field for arguments & fields
• Remove raw json view of audited_changes
• Add authz of audited records
• Test the MFA reset action itself
• Add base action that has validation hooks, handles auditing, etc
• Look into replacing auditing logic with something that can capture multiple save calls

The UI flow:

Step 1, find the user in Avo

Step 2, visit the user page and use the Action menu to choose "Reset 2FA"

Step 3, fill out the explanation

Step 4, you're done and here is the audit log entry

[codecov]

Codecov Report

Merging #3426 (898e617) into master (86b31eb) will increase coverage by 0.08%.
The diff coverage is 98.70%.

@@            Coverage Diff             @@
##           master    #3426      +/-   ##
==========================================
+ Coverage   97.77%   97.86%   +0.08%     
==========================================
  Files         145      156      +11     
  Lines        3866     4021     +155     
==========================================
+ Hits         3780     3935     +155     
  Misses         86       86              

Impacted Files	Coverage Δ
...nts/avo/fields/json_viewer_field/show_component.rb	66.66% <66.66%> (ø)
app/policies/audit_policy.rb	90.00% <90.00%> (ø)
app/avo/actions/base_action.rb	100.00% <100.00%> (ø)
app/avo/actions/reset_user_2fa.rb	100.00% <100.00%> (ø)
app/avo/fields/audited_changes_field.rb	100.00% <100.00%> (ø)
app/avo/fields/json_viewer_field.rb	100.00% <100.00%> (ø)
app/avo/resources/audit_resource.rb	100.00% <100.00%> (ø)
app/avo/resources/user_resource.rb	97.72% <100.00%> (+0.16%)	⬆️
.../avo/audited_changes_record_diff/show_component.rb	100.00% <100.00%> (ø)
...avo/fields/audited_changes_field/show_component.rb	100.00% <100.00%> (ø)
... and 6 more

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[indirect]

@segiddins this is really good!

Let's adjust the Audit show page a bit so it's clearer what's happening:

• Change "Auditable" to "Edited Record"
• Move changed fields to the top inside "Audited Changes"
• Move the "action information" fields to the bottom or to the side
• Shrink the gravatar so it's not taking up so much screen space. Maybe half that height?

[segiddins]

new look to the audit log entry page

[indirect]

Okay, this looks good to me!