Fix mustache import for webviews

[t1m0thyj]

Proposed changes

Fixes regression introduced in #3023 where Edit History webview fails to open when debugging ZE:

Release Notes

Milestone: N/A

Changelog: N/A

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• Enhancement (non-breaking change which adds or improves functionality)
• Breaking change (a change that would cause existing functionality to not work as expected)
• Documentation (Markdown, README updates)
• Other (please specify above in "Proposed changes" section)

Checklist

General

• I have read the CONTRIBUTOR GUIDANCE wiki
• All PR dependencies have been merged and published (if applicable)
• A GIF or screenshot is included in the PR for visual changes
• The pre-publish command has been executed:
  • v2 and below: yarn workspace vscode-extension-for-zowe vscode:prepublish
  • v3: pnpm --filter vscode-extension-for-zowe vscode:prepublish

Code coverage

• There is coverage for the code that I have added
• I have added new test cases and they are passing
• I have manually tested the changes

Deployment

• I have added developer documentation (if applicable)
• Documentation should be added to Zowe Docs
  • If you're an outside contributor, please post in the #zowe-doc Slack channel to coordinate documentation.
  • Otherwise, please check with the rest of the squad about any needed documentation before merging.
• These changes may need ported to the appropriate branches (list here):

Further comments

The fix was inspired by janl/mustache.js#786 (comment) 😋

[sonarqubecloud]

Quality Gate passed

Issues
0 New issues
0 Accepted issues

Measures
0 Security Hotspots
0.0% Coverage on New Code
0.0% Duplication on New Code

See analysis details on SonarCloud

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.87%. Comparing base (266a9a5) to head (17a3ccc).

Additional details and impacted files

@@           Coverage Diff            @@
##             next    #3038    +/-   ##
========================================
  Coverage   92.87%   92.87%            
========================================
  Files         107      107            
  Lines       10913    10913            
  Branches     2253     2366   +113     
========================================
  Hits        10135    10135            
  Misses        776      776            
  Partials        2        2            

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

[traeok]

LGTM, opened a few webviews with this fix and its working as intended. Thanks @t1m0thyj 😋