Fix incorrectly updating session with build-ok before start of schema update
Set a timeout for progress on the schema build 40s (lock wait time is 30s, so must be more than that). Allow the user to restart the process if this timeout is reached.
Animate the progress bar while waiting for the schema update. Stop animation on failure or success.
Properly destroy the session after install. This allows the user to restart if they need to without any tricks.
Move next step buttons to the right.
always check that the base sql has been imported.
async db building
After this merge, we could move install.php to the end of the install documentation. Makes a more natural flow.
