[MM-43337] Updating email templates for trial will end and trial ended emails (#19976)

* Updating email templates for trial will end and trial will end emails

* put back variable

* Rebuilding

* fix tests

* Updates

* [MM-43339] Add Cloud Subscription Upgrade Confirmation Email (#19989)

* Add Cloud Upgrade Confirmation email

* Updates

* String change

* i18n-extract

* Updates

* make email-mocks

* Appease linter

* Add a test

* GMAIL NEVER RENDERS RIGHT

* Important EVERYWHERE because gmail just cant deal

* l

* Last one

* Update image

* Update tests

* Fix tests

Co-authored-by: Mattermod <mattermod@users.noreply.github.com>

app/email/mocks/ServiceInterface.go

@@ -153,6 +153,20 @@ func (_m *ServiceInterface) SendCloudTrialEndedEmail(userEmail string, name stri
 	return r0
 }
 
+// SendCloudUpgradeConfirmationEmail provides a mock function with given fields: userEmail, name, trialEndDate, locale, siteURL, workspaceName
+func (_m *ServiceInterface) SendCloudUpgradeConfirmationEmail(userEmail string, name string, trialEndDate string, locale string, siteURL string, workspaceName string) error {
+	ret := _m.Called(userEmail, name, trialEndDate, locale, siteURL, workspaceName)
+
+	var r0 error
+	if rf, ok := ret.Get(0).(func(string, string, string, string, string, string) error); ok {
+		r0 = rf(userEmail, name, trialEndDate, locale, siteURL, workspaceName)
+	} else {
+		r0 = ret.Error(0)
+	}
+
+	return r0
+}
+
 // SendCloudWelcomeEmail provides a mock function with given fields: userEmail, locale, teamInviteID, workSpaceName, dns, siteURL
 func (_m *ServiceInterface) SendCloudWelcomeEmail(userEmail string, locale string, teamInviteID string, workSpaceName string, dns string, siteURL string) error {
 	ret := _m.Called(userEmail, locale, teamInviteID, workSpaceName, dns, siteURL)