mirrors/mattermost-server：Mattermost is an open source, private cloud, Slack-alternative from https://mattermost.com. It's written in Golang and React and runs as a single Linux binary with MySQL or PostgreSQL.

MM-68247 Move user agent utilities into shared package and clean it up (#36033)

Start moving user agent utils into shared package
Remove inobounce and stop exporting isIosSafari

Based on some quick testing on my phone, inobounce is no longer needed. Both local and Community:

Let you overscroll on the landing and login pages
Don’t overscroll in a channel, a thread, or the LHS while fully zoomed out
Do let you overscroll when zoomed in

That also lets me reduce the size of the interface for utils/user_agent.

Remove unneeded exports and unused functions
Remove outdated workarounds from FileUpload component

These were only needed to support a 10 year old version of iOS Chrome and the classic app.

Remove useOrientationHandler

This was added in https://github.com/mattermost/mattermost-webapp/pull/2504, but I don’t think the extra complexity is worth keeping it around when we mostly support mobile view for desktop accessibility reasons.

Replace isIosWeb/isAndroidWeb with isIos/isAndroid

These were previously needed to differentiate between the mobile web app and the classic app.

Replace isMobileApp with isMobile

Similar to the last commit, we used to need to differentiate between the mobile web and the classic app. For most places, I just replaced isMobileApp with isMobile, but I removed the check in ProductMenuList because we want to show that link on mobile web.

Move isInternetExplorer and isEdge out of the shared package

Those should be removed, so I don’t want to include them in the shared package at all. I also renamed isChromiumEdge to just isEdge since that should be its name once the old ones are removed.

Change how functions are re-exported to fix tests
Update web app code to use shared user agent utils directly
Removed useless mock
Fix how tests mock utils/user_agent now that it’s fully moved
Actually export user_agent utils from shared package

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