Change Details

This diff styles `KeyserverSelection` to match [what's in Figma](https://www.figma.com/file/a1nkbWgbgjRlrOY9LVurTz/Comm-%2F-Desktop-app?node-id=11725%3A252655&t=nS41Gv0y9g6arpro-1), but without any selection state. I also introduce two new components: `KeyserverTile` and `KeyserverTileHeader`. They serve to factor out the tile JSX, and in later diffs will also hold the selection state. Depends on D7575

This diff styles `KeyserverSelection` to match [what's in Figma](https://www.figma.com/file/a1nkbWgbgjRlrOY9LVurTz/Comm-%2F-Desktop-app?node-id=11725%3A252655&t=nS41Gv0y9g6arpro-1), but without any selection state or "Next" button. I also introduce two new components: `KeyserverTile` and `KeyserverTileHeader`. They serve to factor out the tile JSX, and in later diffs will also hold the selection state. Depends on D7575

This diff styles `KeyserverSelection` to match [what's in Figma](https://www.figma.com/file/a1nkbWgbgjRlrOY9LVurTz/Comm-%2F-Desktop-app?node-id=11725%3A252655&t=nS41Gv0y9g6arpro-1), but without any selection state or "Next" button. I also introduce two new components: `KeyserverTile` and `KeyserverTileHeader`. They serve to factor out the tile JSX, and in later diffs will also hold the selection state. Depends on D7575