[git] IJPL-192098 Disable branches widget in CWM

1. Mark as frontend-only to prevent getting it from backend
2. Explicitly disable frontend action in CWM

GitOrigin-RevId: d3d00e3e39be46f8aad688c81af82a7d4cb6d63d

plugins/git4idea/frontend/src/com/intellij/vcs/git/frontend/widget/GitToolbarWidgetAction.kt

@@ -2,12 +2,13 @@
 package com.intellij.vcs.git.frontend.widget
 
 import com.intellij.openapi.actionSystem.AnActionEvent
+import com.intellij.openapi.actionSystem.remoting.ActionRemoteBehaviorSpecification
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.util.registry.Registry
 import com.intellij.vcs.git.shared.isRdBranchWidgetEnabled
 import com.intellij.vcs.git.shared.widget.GitToolbarWidgetActionBase
 
-class GitToolbarWidgetAction: GitToolbarWidgetActionBase() {
+internal class GitToolbarWidgetAction: GitToolbarWidgetActionBase(), ActionRemoteBehaviorSpecification.Frontend {
   override fun doUpdate(e: AnActionEvent, project: Project) {
     if (!Registry.isRdBranchWidgetEnabled()) {
       e.presentation.isEnabledAndVisible = false

plugins/git4idea/shared/src/com/intellij/vcs/git/shared/GitDataHoldersInitializer.kt

@@ -12,7 +12,7 @@ import kotlinx.coroutines.launch
 
 internal class GitDataHoldersInitializer : ProjectActivity {
   override suspend fun execute(project: Project) {
-    if (application.isUnitTestMode) return
+    if (application.isUnitTestMode || isCodeWithMe()) return
 
     coroutineScope {
       launch {

plugins/git4idea/shared/src/com/intellij/vcs/git/shared/rdWidgetRegistry.kt

@@ -1,8 +1,15 @@
 package com.intellij.vcs.git.shared
 
+import com.intellij.frontend.FrontendApplicationInfo
+import com.intellij.frontend.FrontendType
 import com.intellij.openapi.util.registry.Registry
 import org.jetbrains.annotations.ApiStatus
 
 @ApiStatus.Internal
 fun Registry.Companion.isRdBranchWidgetEnabled(): Boolean =
-  `is`("git.branches.widget.rd", true)
+  `is`("git.branches.widget.rd", true) && !isCodeWithMe()
+
+internal fun isCodeWithMe(): Boolean {
+  val frontendType = FrontendApplicationInfo.getFrontendType() as? FrontendType.RemoteDev ?: return false
+  return !frontendType.isLuxSupported
+}