Mobile: code formatting changes when codeblocks are fullscreen

Mobile app v2.15

When opening a codeblock in full screen the highlighting changes. If you notice the purple key when viewing the post change to white when viewing the code. (See linked Jira ticket for screenshots)

The issue here is likely that the user-specified language isn’t passed correctly to the full screen version. The post from the screenshots specifies the language to be Go. Here’s the text of the post:

" Why is it common in our go codebase to have wide vs long code?

This:

	groupConstrainedChannel := &model.Channel{DisplayName: "Test API Name", Name: GenerateTestChannelName(), Type: model.ChannelTypeOpen, TeamId: team.Id, GroupConstrained: model.NewBool(true)}

Versus:

	groupConstrainedChannel := &model.Channel{
		DisplayName: "Test API Name", 
		Name: GenerateTestChannelName(), 
		Type: model.ChannelTypeOpen, 
		TeamId: team.Id, 
		GroupConstrained: model.NewBool(true),
	}

"

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JIRA: https://mattermost.atlassian.net/browse/MM-57929