Update JetBrains.gitignore

In newer versions of the IntelliJ platform (such as the one used for Rider), the .idea files are now placed in a subdirectory of the same, named after the current project (such as ".idea/.idea.Everlook/.idea/workspace.xml"). Adding a double-star pattern to these folder rules will also ignore these new files and maintain backwards compatibility with previous revisions of this file.

Global/JetBrains.gitignore

@@ -2,24 +2,24 @@
 # Reference: https://intellij-support.jetbrains.com/hc/en-us/articles/206544839
 
 # User-specific stuff:
-.idea/workspace.xml
-.idea/tasks.xml
+.idea/**/workspace.xml
+.idea/**/tasks.xml
 
 # Sensitive or high-churn files:
-.idea/dataSources/
-.idea/dataSources.ids
-.idea/dataSources.xml
-.idea/dataSources.local.xml
-.idea/sqlDataSources.xml
-.idea/dynamic.xml
-.idea/uiDesigner.xml
+.idea/**/dataSources/
+.idea/**/dataSources.ids
+.idea/**/dataSources.xml
+.idea/**/dataSources.local.xml
+.idea/**/sqlDataSources.xml
+.idea/**/dynamic.xml
+.idea/**/uiDesigner.xml
 
 # Gradle:
-.idea/gradle.xml
-.idea/libraries
+.idea/**/gradle.xml
+.idea/**/libraries
 
 # Mongo Explorer plugin:
-.idea/mongoSettings.xml
+.idea/**/mongoSettings.xml
 
 ## File-based project format:
 *.iws