Patch release 1.1.2

Bug fixes

* www: remove rogue closing tag (3d9e46df74e6bd399c7d8f6535c2e0250e7776ac)

 Other changes

* release: ignore backend-only tags (b0eb4f95b774279092834876c2e5e4ba571f2f71)
* release: check release exists on gitlab after goreleaser returns (5bf9890dd18539af932b960c192eefbfe381558a)