Remove webpack content hashes with removeHashPlugin

[kimsauce]

Purpose of this pull request

Testing the removeHashPlugin approach to determine if removing content hashes from webpack output resolves the intermittent Algolia search box freezing issue.

Changes

• Added removeHashPlugin function to docusaurus.config.js that removes content hashes from webpack output filenames
• Files will be named main.js, runtime.js instead of 08ecafc4.dc57a9ba.js, etc.

Expected Results

Based on webpack's standard module resolution behavior, this change may:

• Break webpack's module chunk resolution
• Cause 404 errors in the browser console for JavaScript files
• Potentially break the Algolia search functionality

Testing Plan

1. Deploy to staging environment only
2. Monitor browser console for 404 errors
3. Test Algolia search box functionality
4. Compare results against current working staging build (with hashes intact)

Next Steps

If the production approach (cache clearing improvements) causes issues, we can revisit this PR. If cache clearing improvements is successful, we'll close this PR without merging.

---

⚠️ STAGING EXPERIMENT ONLY - DO NOT MERGE TO MAIN ⚠️

---

Select the type of change

• Minor Changes - Typos, formatting, slight revisions
• Update Content - Revisions, updating sections
• New Content - New features, sections, pages, tutorials
• Site and Tools - .clabot, version updates, maintenance, dependencies, new packages for the site (Docusaurus, Gatsby, React, etc.)

Ticket (if applicable)

DOCS-1340

[jpipkin1]

@kimsauce, in staging I get this error on the Console tab in Chrome:

GET https://helpdocs-sumo-logic.pantheonsite.io/help/5e9f5e1a.js net::ERR_ABORTED 404 (Not Found)

[kimsauce]

@kimsauce, in staging I get this error on the Console tab in Chrome:

GET https://helpdocs-sumo-logic.pantheonsite.io/help/5e9f5e1a.js net::ERR_ABORTED 404 (Not Found)

I'm seeing the same issue