Update git submodules
- Update MinervaNeue from branch 'master' to 276c48c26707fcf5775f3dcd98d312b4b22556a2
- Merge "[fix] [Visual Editor] [LESS] [content] create stacking context differently"
- [fix] [Visual Editor] [LESS] [content] create stacking context differently
b96ab7bd created a new CSS stacking context[0-1] for .content. Unfortunately, this triggered a browser bug which affects VE edit cards (an unwanted margin appears around them). This also occurs when creating a stacking context with filters. The issue does not occur when the stacking context is created by changing position or opacity. Replace the identity transform a position: relative.
 https://philipwalton.com/articles/what-no-one-told-you-about-z-index/  https://stackoverflow.com/questions/16148007/which-css-properties-create-a-stacking-context?answertab=votes#tab-top  https://bugs.chromium.org/p/chromium/issues/detail?id=20574
Bug: T230154 Change-Id: I23ad776f0bcde8f7eec5ffbdefb8f0825db084ec