v7.3.1
[docs] Remove obsolete translations (#39221)
[material-ui][mui-system] Stabilize Grid v2 and deprecate Grid v1 (#43054)
[docs] Add `theme.applyStyles` and migrate docs (#42498)
[core] Fix duplicate branch reference (#45915)
[docs] Fix migration instructions (#45762)
[material-ui][Grid2] Rename to Grid (#45381)
[docs] Fix brand name non-breaking space (#40701)
[docs][material-ui][system] Edit "How to use components selector API" section to add about direct import (#43377)
[docs] Fix 301 links to the system v6 (#45931)
[code-infra] Remove more CJS modules from the docs (#45557)