[SITES-16761] Fixed missing toolbar for image component

[myronenko]

Jira: https://jira.corp.adobe.com/browse/SITES-16761
Added two null pointer checks since authorNs is usually undefined.
Since smartcropaction.js was added with b49e22c I assume that the focus was NGDM and that's the case when authorNs should be defined. Hence this is a fix for non-NGDM case.

[sonarcloud]

Kudos, SonarCloud Quality Gate passed!   

0 Bugs
0 Vulnerabilities
0 Security Hotspots
0 Code Smells

No Coverage information
No Duplication information

[codecov]

Codecov Report

Merging #2605 (a968eda) into main (6a102d1) will not change coverage.
The diff coverage is n/a.

❗ Current head a968eda differs from pull request most recent head 99d5b04. Consider uploading reports for the commit 99d5b04 to get more accurate results

@@            Coverage Diff            @@
##               main    #2605   +/-   ##
=========================================
  Coverage     87.34%   87.34%           
  Complexity     2648     2648           
=========================================
  Files           232      232           
  Lines          7078     7078           
  Branches       1073     1073           
=========================================
  Hits           6182     6182           
  Misses          359      359           
  Partials        537      537           

📣 We’re building smart automated test selection to slash your CI/CD build times. Learn more