[PM-30521] Add Autofill button to View Login screen for extension (#18766)

* adds autofill button for cipher view

* adds tests

* changes autofill function for non login types

* adds top margin to autofill button

* adds more top margin to autofill button

* only shows autofill button when autofill is allowed (not in a popout)

* add button type

* updates _domainMatched to take a tab param, updates how the component is passed through to slot

* fixes tests from rename

* adds comment about autofill tab checking behavior

* removes diff markers

libs/common/src/enums/feature-flag.enum.ts

@@ -70,6 +70,7 @@ export enum FeatureFlag {
   BrowserPremiumSpotlight = "pm-23384-browser-premium-spotlight",
   MigrateMyVaultToMyItems = "pm-20558-migrate-myvault-to-myitems",
   PM27632_SdkCipherCrudOperations = "pm-27632-cipher-crud-operations-to-sdk",
+  PM30521_AutofillButtonViewLoginScreen = "pm-30521-autofill-button-view-login-screen",
   PM29438_WelcomeDialogWithExtensionPrompt = "pm-29438-welcome-dialog-with-extension-prompt",
   PM29438_DialogWithExtensionPromptAccountAge = "pm-29438-dialog-with-extension-prompt-account-age",
   PM29437_WelcomeDialog = "pm-29437-welcome-dialog-no-ext-prompt",
@@ -139,6 +140,7 @@ export const DefaultFeatureFlagValue = {
   [FeatureFlag.BrowserPremiumSpotlight]: FALSE,
   [FeatureFlag.PM27632_SdkCipherCrudOperations]: FALSE,
   [FeatureFlag.MigrateMyVaultToMyItems]: FALSE,
+  [FeatureFlag.PM30521_AutofillButtonViewLoginScreen]: FALSE,
   [FeatureFlag.PM29438_WelcomeDialogWithExtensionPrompt]: FALSE,
   [FeatureFlag.PM29438_DialogWithExtensionPromptAccountAge]: 5,
   [FeatureFlag.PM29437_WelcomeDialog]: FALSE,