This allows the minifier to mangle the constants. It also allows the linter to find unused strings properly.
While at it, remove a few unused properties.
| File | Before | After | Diff |
|---|---|---|---|
| bootstrap.bundle.min.js | 22.09 kB | 21.13 kB | -0.96 kB (-4.35 %) |
| bootstrap.min.js | 15.4 kB | 14.46 kB | -0.94 kB (-3.86 %) |
Refs #20011 (closed), refs #30358
Preview: https://deploy-preview-30490--twbs-bootstrap.netlify.com/