fix: Force visibility for tippy

Signed-off-by: Julius Härtl <jus@bitgrid.net>

cypress/e2e/Assistant.spec.js

@@ -4,7 +4,7 @@ const currentUser = randUser()
 
 const fileName = 'empty.md'
 
-describe.skip('Assistant', () => {
+describe('Assistant', () => {
 	before(() => {
 		initUserAndFiles(currentUser, fileName)
 	})

src/css/prosemirror.scss

@@ -360,3 +360,7 @@ div.ProseMirror {
 .editor__content {
 	tab-size: 4;
 }
+
+.tippy-content div {
+	visibility: visible !important;
+}