Move to og:image instead of msapplication-tileimage for links

[danieljhochman]

Version: 0.57.2

When you paste a link from a website, it pulls in the msapplication-tileimage. Many times this shows a plain white image because the site uses CSS to color it (which is common). Instead, use the og:image which most other chat apps use.

Example of bad msapplication-tileimage

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