Vorta using internal Borg and not the homebrew installed version

[TensorBlast]

Describe the bug
A clear and concise description of what the bug is.

To Reproduce
Steps to reproduce the behavior:

1. As per instructions type: brew install --cask macfuse
2. brew install borgbackup/tap/borgbackup-fuse
3. brew install --cask vorta
4. Open Vorta
5. Go to "Misc" page which shows that vorta is using borg from within its Applications/Contents/Resources/borg-dir/ directory (screenshot attached)

Expected Result: The homebrew borg is installed (default) in /opt/homebrew/bin/borg which should be used

KIND REQUEST: DO NOT MARK THIS AS SUPPORT AS THIS IS A BUG NOT JUST A ONE OFF UNLESS YOU CAN PROVE OTHERWISE.

Environment (please complete the following information):

• OS: Mac OS Big Sur 11.4
• Vorta version: 0.7.5
• Installed from: brew install --cask vorta

Vorta and Borg versions can be found in Main Window > Misc Tab.

Additional context
If appropriate include logs. Can be found in Main Window > Misc Tab > Log.

[TensorBlast]

As a potential hotfix: creating a symlink from homebrew's cellar to /usr/local/bin (basically copying /opt/homebrew/bin/borg to /usr/local/bin/borg) worked.
But, this needs to be addressed in the code for Vorta to look at directory /opt/hombrew/bin/borg too

[m3nu]

You're right. /opt/homebrew/bin isn't in our PATH variable for macOS yet. Added a new PR #1002 to address this.