Report HTML template missing from kbn-alert-load@2.1.0

[simianhacker]

Looks like the report template didn't make it into the NPM package for 2.1.0.

I ran kbn-alert-load run number-of-alerts and it failed with:

Error: ENOENT: no such file or directory, open '/Users/ccowan/.nvm/versions/node/v16.13.0/lib/node_modules/kbn-alert-load/lib/report-template.html'
    at Object.openSync (node:fs:585:3)
    at Object.readFileSync (node:fs:453:35)
    at readTemplate (/Users/ccowan/.nvm/versions/node/v16.13.0/lib/node_modules/kbn-alert-load/lib/report.js:43:13)
    at generateReport (/Users/ccowan/.nvm/versions/node/v16.13.0/lib/node_modules/kbn-alert-load/lib/report.js:22:19)
    at run (/Users/ccowan/.nvm/versions/node/v16.13.0/lib/node_modules/kbn-alert-load/lib/commands.js:163:3)
    at runMicrotasks (<anonymous>)
    at processTicksAndRejections (node:internal/process/task_queues:96:5)

[pmuellr]

Dang it, I think it's because we added a top-level .gitignore for them. Which is probably good, so we should probably rename the file from *.html to *.html-template or something, or else create some more complicated .gitignore-isms.

kbn-alert-load/.gitignore

Lines 1 to 5 in 4f2a026

	node_modules
	tmp
	.vscode
	*.html
	.DS_Store