[v11.5] Remove relref shortcodes (#101707)
* manually replce all shared relrefs
* relref replace - grafana v11.5
* Merge branch 'master' into robbymilo/relref-replace-grafana-11.5
* manual fixes
* replace ref shortcodes
* Merge branch 'master' into robbymilo/relref-replace-grafana-11.5
* update readme
* update test
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Co-authored-by: Jack Baldry <jack.baldry@grafana.com>