Update minimum browser versions
Update minimum browser versions

flag=none

This file controls the "you are on an unsupported browser"
alert message and should be updated to reflect the most
recent version minus one of our supported browsers. In
this case I used the "long term support" version of
Firefox (current 91, last 78), along with version 98 of
Chrome and 14 of Safari.

Test plan:
* you agree with the browser versions listed here

Change-Id: Ia967dcf387c3b963c830e180394b1a0b35781e63
Reviewed-on: https://gerrit.instructure.com/c/canvas-lms/+/292214
Reviewed-by: Ben Rinaca <55a6093a45d41fed7a0fcf1e8dbdc41f5092bc04@instructure.com>
Tested-by: Service Cloud Jenkins <9144042a601061f88f1e1d7a1753ea3e2972119d@instructure.com>
QA-Review: Charley Kline <05950d7e90ba5e3da323378368c22b3ffaaf6647@instructure.com>
Product-Review: Charley Kline <05950d7e90ba5e3da323378368c22b3ffaaf6647@instructure.com>

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