Blog anchor links in paginated lists should be resolved against blog post url, not current url

### Have you read the Contributing Guidelines on issues?

- [X] I have read the [Contributing Guidelines on issues](https://github.com/facebook/docusaurus/blob/main/CONTRIBUTING.md#issues).

### Prerequisites

- [X] I'm using the latest version of Docusaurus.
- [X] I have tried the `npm run clear` or `yarn clear` command.
- [X] I have tried `rm -rf node_modules yarn.lock package-lock.json` and re-installing packages.
- [X] I have tried creating a repro with https://new.docusaurus.io.
- [X] I have read the console error message carefully (if applicable).

### Description

Anchor tags shown on an entry of https://docusaurus.io/blog, doesn't go to the entry page's anchor tag. It goes to the https://docusaurus.io/blog#ANCHOR-TAG.

### Reproducible demo

_No response_

### Steps to reproduce

1. go to https://docusaurus.io/blog with a description that links to an anchor tag on the entry's page
2. Click on anchor tag in the entry page's one-liner description above the truncate line.
3. Goes to broken link.

### Expected behavior

Expect to go to the entry page's anchor, not to stay on the blog's home page.

### Actual behavior

Stays on blog's home page.

### Your environment

- Public source code:
- Public site URL:
- Docusaurus version used:
- Environment name and version (e.g. Chrome 89, Node.js 16.4):
- Operating system and version (e.g. Ubuntu 20.04.2 LTS):

### Self-service

- [ ] I'd be willing to fix this bug myself.