[x] Strikethrough is not supported on the backend; we might add support later, but for now the button should be hidden and support for parsing ~~...~~ should be disabled.
[x] Font size should be equal to the rendered font size
Exhibit B
[x] Code blocks should look like code blocks, not like several inline code lines
[x] Code blocks should be set in monospace
[x] Spaces at line beginnings should also belong to the code block
Exhibit A
~~...~~should be disabled.Exhibit B