perf: Only set text size if the scale isn't 1

[Hocuri]

According to the Android Studio profiler, this is an easy win of 1.5ms when loading the chat activity.

I tested that when one or multiple of the latest message are large, and then I scroll up to text messages, these text messages are at scale 1. (because sometimes with the RecylcerView it happens that when you change something, it isn't reset to the default value when the item is recycled).

[github-actions]

To test the changes in this pull request, install this apk:
📦 app-preview.apk

[adbenitez]

I tested that when one or multiple of the latest message are large, and then I scroll up to text messages, these text messages are at scale 1. (because sometimes with the RecylcerView it happens that when you change something, it isn't reset to the default value when the item is recycled).

this is because in ConversationItem we always set/reset the font size (due to the custom font size setting we have in appearance which we contemplated removing recently:

bodyText.setTextSize(TypedValue.COMPLEX_UNIT_SP, Prefs.getMessageBodyTextSize(context));

I think the proper way to fix this is to check getTextSize() and compare with the target font size originalFontSize * scale and only call setTextSize() if they are different

[adbenitez]

this PR becomes invalid with #3424

[adbenitez]

#3424 got merged, text size is not set anymore outside in ConversationItem so it needs to be set inside AutoScaledEmojiTextView, so the issue of setting the size twice that this PR was targeting is solved! 🎉