Non-default install location doesn't work, default hard-coded in some places

[OJFord]

Describe the bug Installation seems to go ok, then on launching:

[...]
Saving to: ‘/tmp/fusion360/build-version.txt’

build-version.txt               100%[====================================================>]      20  --.-KB/s    in 0s

Last-modified header missing -- time-stamps turned off.
2022-09-21 17:20:54 (2.44 MB/s) - ‘/tmp/fusion360/build-version.txt’ saved [20/20]

Online Build-Version: 2.0.13168
Online Insider-Build-Version: 2.0.13367
The version.txt file not exist!
$REAL_INSTALL_PATH/bin/launcher.sh: line 71: $HOME/.fusion360/bin/update.sh: No such file or directory

To Reproduce Steps to reproduce the behavior:

1. Install to non-default location

Expected behavior Installs ok, launchable, uninstallable

[OJFord]

e.g.

https://github.com/cryinkfly/Autodesk-Fusion-360-for-Linux/blob/6920f089432345f5c396fd6f144ebc6a80a1e42d/files/builds/stable-branch/bin/launcher.sh#L71

https://github.com/cryinkfly/Autodesk-Fusion-360-for-Linux/blob/6920f089432345f5c396fd6f144ebc6a80a1e42d/files/builds/stable-branch/bin/update.sh#L19-L27

https://github.com/cryinkfly/Autodesk-Fusion-360-for-Linux/blob/6920f089432345f5c396fd6f144ebc6a80a1e42d/files/builds/stable-branch/bin/uninstall.sh#L21-L30