Fix auth workflow

[pkukielka]

Fixes https://linear.app/sourcegraph/issue/QA-71
Fixes https://linear.app/sourcegraph/issue/QA-105
Fixes https://linear.app/sourcegraph/issue/CODY-3884

Fixes

1. Changes done in the account management panel were not triggering AccountSettingChangeContext event and whole flow connected with it (fixed in CodyAccountListModel.kt)
2. After webview is ready and we should not switch to it immediately but instead call refreshPanelsVisibility to establish proper state
3. Change listeners being project services need to be invoked at least once to be initialised and in turn connected to the event bus. Otherwise they will not process any events.

All in all, considering amount of bugs there, I'm surprised that there were not even more issues visible.

There is one minor remaining issue:
Sometimes when switching to webview, loging panel from webview is visible for a fraction of second.
I think we can live with it until we will fully switch to webview.

Test plan

1. Start new IJ project.
2. Wait 20s to make sure no webview login panel will appear
3. Login to the Cody using native login panel
4. Webview should be displayed
5. Restart IDE - you should be still logged in with the same account, webview chat view should appear
6. Open Account Management and remove account, then click Ok. You should be moved back to the native login panel.
7. Wait some time to make sure webview login panel won't appear.
8. Login to the Cody using native login panel
9. Click Manage Accounts in Cody status bar and add new account of different tier.
10. Click on the Account tab in the Cody panel and make sure account was switched
11. Click Sign Out. Native login panel should appear immediately.
12. Click Manage Accounts in Cody status bar and make sure both accounts are still there, but neither is marked as active.
13. Mark one of them as active and click OK. Webview chat should be displayed

[mkondratek]

we don't we call CodyAgentService.getInstance(project).restartAgent(project) if we need it?

[pkukielka]

I noticed calling it from there was causing an exception:

java.lang.RuntimeException: java.lang.InterruptedException
	at com.intellij.util.concurrency.SchedulingWrapper.shutdownNow(SchedulingWrapper.java:69)
	at com.intellij.util.concurrency.BoundedScheduledExecutorService.shutdownNow(BoundedScheduledExecutorService.java:35)
	at com.intellij.util.Alarm.dispose(Alarm.java:63)
	at com.intellij.openapi.util.ObjectTree.runWithTrace(ObjectTree.java:129)
	at com.intellij.openapi.util.ObjectTree.executeAll(ObjectTree.java:161)
	at com.intellij.openapi.util.Disposer.dispose(Disposer.java:262)
	at com.intellij.openapi.util.Disposer.dispose(Disposer.java:250)
	at com.intellij.ui.jcef.JBCefOsrComponent.removeNotify(JBCefOsrComponent.java:108)
	at java.desktop/java.awt.Container.removeNotify(Container.java:2835)
	at java.desktop/javax.swing.JComponent.removeNotify(JComponent.java:4858)
	at com.intellij.ui.jcef.JBCefBrowser$MyPanel.removeNotify(JBCefBrowser.java:415)
	at java.desktop/java.awt.Container.lambda$removeAll$2(Container.java:1326)
	at java.desktop/sun.awt.SunToolkit.lambda$performWithTreeLock$1(SunToolkit.java:2139)
	at java.desktop/sun.awt.SunToolkit.performOnMainThreadIfNeeded(SunToolkit.java:2164)
	at java.desktop/sun.awt.SunToolkit.performWithTreeLock(SunToolkit.java:2137)
	at java.desktop/java.awt.Container.removeAll(Container.java:1315)
	at com.sourcegraph.cody.CodyToolWindowContent.showView(CodyToolWindowContent.kt:79)
	at com.sourcegraph.cody.CodyToolWindowContent.refreshPanelsVisibility(CodyToolWindowContent.kt:71)
	at com.sourcegraph.cody.CodyToolWindowContent.setWebviewComponent$Sourcegraph(CodyToolWindowContent.kt:96)
	at com.sourcegraph.cody.ui.web.CodyToolWindowContentWebviewHost.reset(WebviewView.kt:49)
	at com.sourcegraph.cody.ui.web.WebviewViewManager.reset(WebviewView.kt:79)
	at com.sourcegraph.cody.ui.web.WebUIService.reset(WebUIService.kt:44)
	at com.sourcegraph.cody.agent.CodyAgentService$stopAgent$1.invoke(CodyAgentService.kt:127)
	at com.sourcegraph.cody.agent.CodyAgentService$stopAgent$1.invoke(CodyAgentService.kt:126)
	at com.sourcegraph.cody.agent.CodyAgentService.stopAgent$lambda$8(CodyAgentService.kt:126)
	at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1150)
	at java.base/java.util.concurrent.CompletableFuture.postComplete(CompletableFuture.java:510)
	at java.base/java.util.concurrent.CompletableFuture.complete(CompletableFuture.java:2147)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.handleResponse(RemoteEndpoint.java:223)
	at org.eclipse.lsp4j.jsonrpc.RemoteEndpoint.consume(RemoteEndpoint.java:204)
	at org.eclipse.lsp4j.jsonrpc.TracingMessageConsumer.consume(TracingMessageConsumer.java:119)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.handleMessage(StreamMessageProducer.java:185)
	at org.eclipse.lsp4j.jsonrpc.json.StreamMessageProducer.listen(StreamMessageProducer.java:97)
	at org.eclipse.lsp4j.jsonrpc.json.ConcurrentMessageProcessor.run(ConcurrentMessageProcessor.java:114)
	at java.base/java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:539)
	at java.base/java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:264)
	at java.base/java.util.concurrent.FutureTask.run(FutureTask.java)
	at java.base/java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1136)
	at java.base/java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:635)
	at java.base/java.lang.Thread.run(Thread.java:833)
Caused by: java.lang.InterruptedException
	at java.base/java.util.concurrent.FutureTask.awaitDone(FutureTask.java:418)
	at java.base/java.util.concurrent.FutureTask.get(FutureTask.java:190)
	at com.intellij.util.concurrency.SchedulingWrapper.shutdownNow(SchedulingWrapper.java:66)
	... 39 more

Since this is only needed for a cody advanced settings editor which is currently (after switching to webview) not available from the UI (only as an action) I think we can followup on this later.

[mkondratek]

I cannot find and reliable repro steps for the issue we talked about via google meet before.

lgtm