[Research] Identify new visualisations requirements for GLQL
### Problem to solve [GLQL](https://docs.gitlab.com/user/glql/) currently has limited support for visualisations types (only table and lists). We need to expand the selection to be able to support more visualisations needed to create impactful dashboards. For instance: - Charts ( for reference, column charts are already partially implemented: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/201161) - Stats - Trends In addition to defining which new `display` types we need, we also need to figure out a flexible syntax that allows to configure such visualisations. General direction should be - Sensible defaults (simple things should be simple) - Flexibility ( complex things should be possible )
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