[core] Copy supporting files from the Core repository (mui#6)

Author: michaldudak

.browserslistrc

@@ -0,0 +1,61 @@
+# Default/Fallback
+# `npx browserslist --mobile-to-desktop "> 0.5%, last 2 versions, Firefox ESR, not dead"` when the last major is released.
+# On update, sync references where "#stable-snapshot" is mentioned in the codebase.
+[stable]
+and_chr 121
+and_chr 120
+and_ff 122
+and_ff 121
+and_qq 13.1
+and_uc 15.5
+android 121
+android 120
+chrome 121
+chrome 120
+chrome 119
+chrome 109
+edge 121
+edge 120
+firefox 122
+firefox 121
+firefox 115
+ios_saf 17.3
+ios_saf 17.2
+ios_saf 17.1
+ios_saf 16.6-16.7
+ios_saf 16.3
+ios_saf 16.1
+ios_saf 15.6-15.8
+kaios 3.0-3.1
+kaios 2.5
+op_mini all
+op_mob 73
+opera 106
+opera 105
+safari 17.3
+safari 17.2
+safari 17.1
+safari 16.6
+samsung 23
+samsung 22
+
+# snapshot of `npx browserslist "maintained node versions"`
+# On update check all #stable-snapshot markers
+[node]
+node 18.0
+
+# same as `node`
+[coverage]
+node 18.0
+
+# same as `node`
+[development]
+node 18.0
+
+# same as `node`
+[test]
+node 18.0
+
+# same as `node`
+[benchmark]
+node 18.0