docs(release-notes): split items in files to avoid conflicts (#3452)

I thought there would be conflicts but that they would not be so difficult to manage. Worst idea I had this week. Change to @oliverpool idea instead.

> Instead of documenting the release notes in the issue, why not in the codebase?
>
> For instance in [go](https://cs.opensource.google/go/go/+/master:doc/README.md) there is a `doc/next` folder where you add `<pr-number>.md` files which document each pr.
>
> Before the release, a script takes all those files to generate the changelog.
>
> Having them as a file tracked by git, makes them easy to review and to programmatically handle.

Refs: https://codeberg.org/forgejo/discussions/issues/155#issuecomment-1787013
Co-authored-by: Shiny Nematoda <snematoda.751k2@aleeas.com>
Reviewed-on: https://codeberg.org/forgejo/forgejo/pulls/3452
Reviewed-by: Gergely Nagy <algernon@noreply.codeberg.org>
Co-authored-by: Earl Warren <contact@earl-warren.org>
Co-committed-by: Earl Warren <contact@earl-warren.org>

RELEASE-NOTES.md

@@ -4,30 +4,9 @@ A minor or major Forgejo release is published every [three months](https://forge
 
 A [patch or minor release](https://semver.org/spec/v2.0.0.html) (e.g. upgrading from v7.0.0 to v7.0.1 or v7.1.0) does not require manual intervention. But [major releases](https://semver.org/spec/v2.0.0.html#spec-item-8) where the first version number changes (e.g. upgrading from v1.21 to v7.0) contain breaking changes and the release notes explain how to deal with them.
 
-## 8.0.0
+## Upcoming releases (not available yet)
 
-This is a major release. It contains breaking changes that may require manual intervention. See the documentation for more information on the [upgrade procedure](https://forgejo.org/docs/v7.0/admin/upgrade/).
-
-* **Breaking changes:**
-
-In addition to the following notable bug fixes, you can browse the [full list of commits](https://codeberg.org/forgejo/forgejo/compare/v8.0.0...v7.0.0) included in this release.
-
-If you have any feedback or suggestions for Forgejo do not hold back, it is also your project.
-Open an issue in [the issue tracker](https://codeberg.org/forgejo/forgejo/issues)
-for feature requests or bug reports, reach out [on the Fediverse](https://floss.social/@forgejo),
-or drop into [the Matrix space](https://matrix.to/#/#forgejo:matrix.org)
-([main chat room](https://matrix.to/#/#forgejo-chat:matrix.org)) and say hi!
-
-## 7.0.1
-
-This is a bug fix release. See the documentation for more information on the [upgrade procedure](https://forgejo.org/docs/v7.0/admin/upgrade/).
-
-In addition to the following notable bug fixes, you can browse the [full list of commits](https://codeberg.org/forgejo/forgejo/compare/v7.0.0...v7.0.1) included in this release.
-
-* **Bug fixes:**
-  * The regression in the [`fogejo admin user create`](https://forgejo.org/docs/v7.0/admin/command-line/#admin-user-create) CLI command [is fixed](https://codeberg.org/forgejo/forgejo/issues/3399) and it is backward compatible.
-  * Fixed a bug where the `/api/v1/repos/{owner}/{repo}/wiki` API endpoints were using a hardcoded "master" branch for the wiki, rather than the branch they really use. ([#3430](https://codeberg.org/forgejo/forgejo/pulls/3430))
-  * Fixed an error 500 when visiting [the LFS settings]() at `/{owner}/{repo}/settings/lfs/find?oid=...`.
+- [8.0.0](/release-notes/8.0.0/)
 
 ## 7.0.0
 

release-notes/8.0.0/fix/3399.md

@@ -0,0 +1 @@
+The regression in the [`fogejo admin user create`](https://forgejo.org/docs/v7.0/admin/command-line/#admin-user-create) CLI command [is fixed](https://codeberg.org/forgejo/forgejo/issues/3399) and it is backward compatible.

release-notes/8.0.0/fix/3430.md

@@ -0,0 +1 @@
+Fixed a bug where the `/api/v1/repos/{owner}/{repo}/wiki` API endpoints were using a hardcoded "master" branch for the wiki, rather than the branch they really use.

release-notes/8.0.0/fix/3442.md

@@ -0,0 +1 @@
+Save updated empty comments instead of skipping the update silently, [which prevented the removal of attachments of such comments](https://codeberg.org/forgejo/forgejo/issues/3424).

release-notes/8.0.0/fix/3444.md

@@ -0,0 +1 @@
+Fixed bleve indexer failing when [fuzziness exceeds the maximum 2](https://codeberg.org/forgejo/forgejo/pulls/3444)

release-notes/8.0.0/fix/3451.md

@@ -0,0 +1 @@
+Fixed an error 500 when visiting [the LFS settings](https://codeberg.org/forgejo/forgejo/pulls/3451) at `/{owner}/{repo}/settings/lfs/find?oid=...`.