Add 'Save' button to edit-text modal

[0xjim]

[diegoprudencios]

Let me design this today.

[diegoprudencios]

So, I decided to use a CLOSE button instead of SAVE because the changes are applied in real-time, so there is no need to save anything.

Also, I changed the position of the DELETE button, moving to the bottom of the window.

For the mobile view, I know we already add the REVERSE button to change the text color, but I think the use of space is a bit weird. I would remove the icon, and switch the color whenever users tap one of the color buttons.

If its possible, can we fix the arrow on the selector? looks bad that way.

Figma link:
https://www.figma.com/file/wXczUcc9WlLtpuVJmHVYZm/Memixer---Fixes-1?node-id=1794%3A3624