Chore(deps): bump rxjs from 7.5.7 to 7.8.2

Bumps [rxjs](https://github.com/reactivex/rxjs) from 7.5.7 to 7.8.2.
- [Release notes](https://github.com/reactivex/rxjs/releases)
- [Changelog](https://github.com/ReactiveX/rxjs/blob/7.8.2/CHANGELOG.md)
- [Commits](ReactiveX/rxjs@7.5.7...7.8.2)

---
updated-dependencies:
- dependency-name: rxjs
  dependency-version: 7.8.2
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

package-lock.json

@@ -84,7 +84,7 @@
     "ngx-remark": "^0.0.6-ng14",
     "propagating-hammerjs": "^2.0.1",
     "remark": "^14.0.3",
-    "rxjs": "~7.5.0",
+    "rxjs": "~7.8.2",
     "timsort": "^0.3.0",
     "tslib": "^2.3.1",
     "uuid": "^11.1.1",