refactor: Use Mustache instead of Handlebars

[traeok]

Proposed changes

Uses the mustache dependency instead of handlebars to minimize dependency count.

Release Notes

Milestone: vNext

Changelog:
Removed handlebars dependency in favor of mustache for technical currency purposes.

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
• 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):

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 92.66%. Comparing base (253365c) to head (02e3a50).

Additional details and impacted files

@@            Coverage Diff             @@
##             next    #2975      +/-   ##
==========================================
- Coverage   92.68%   92.66%   -0.02%     
==========================================
  Files         111      111              
  Lines       11017    11017              
  Branches     2343     2381      +38     
==========================================
- Hits        10211    10209       -2     
- Misses        804      806       +2     
  Partials        2        2              

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[t1m0thyj]

LGTM, thanks @traeok!

[zFernand0]

less transitive dependencies! 🥳
LGTM, thanks @traeok! 😋

[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

[JillieBeanSim]

LGTM! thanks @traeok