Windows system installation updates to user installation

[Lemonexe]

Describe the bug
Trezor Suite installed system-wide on windows creates new, separate user-installation when updating.

Info:

• Suite Version: dev windows build
• OS: Windows 10

How to reproduce
Steps to reproduce the behavior:

1. On Windows, install old Trezor Suite system-wide (i.e. to C:\\Program Files\)
2. Let it update
3. You should see Trezor Suite updated
4. Close it
5. Now you should see two Trezor Suites installed the system-wide which is not updated, and a local one (USER\AppData\Local\) which is updated
   Either of them can be started, which makes it confusing for users

Expected behavior
Either:

• do not allow system-wide installation
• if system-wide application, do not let it update unless it is executed with admin rights