Fix apt command syntax (#1458)

[abtin]

A minor change to correct the order of parameters to the apt command.

Proof of fix:
Before:

$ wails doctor
Wails CLI v2.0.0-beta.37


Scanning system - Please wait (this may take a long time)...Failed.


ERROR: exit status 1

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After:

Wails CLI v2.0.0-beta.37


Scanning system - Please wait (this may take a long time)...Done.

System
------
OS:		Linux Mint
Version: 	20.3
ID:		linuxmint
Go Version:	go1.18
Platform:	linux
Architecture:	amd64

Wails
------
Version: 		v2.0.0-beta.37
Package Manager: 	apt

Dependency	Package Name		Status		Version
----------	------------		------		-------
*docker		docker.io		Installed	20.10.17
gcc		build-essential		Installed	12.8ubuntu1.1
libgtk-3	libgtk-3-dev		Installed	3.24.20-0ubuntu1.1
libwebkit	libwebkit2gtk-4.0-dev	Available	2.36.3-0ubuntu0.20.04.1
npm		npm			Available	6.14.4+ds-1ubuntu2
*nsis		nsis			Available	3.05-2
pkg-config	pkg-config		Installed	0.29.1-0ubuntu4

* - Optional Dependency

Diagnosis
---------
Your system has missing dependencies!

Required package(s) installation details: 
  - libwebkit: sudo apt install libwebkit2gtk-4.0-dev
  - npm: sudo apt install npm

Optional package(s) installation details: 
  - nsis: sudo apt install nsis



If Wails is useful to you or your company, please consider sponsoring the project:
https://github.com/sponsors/leaanthony

[leaanthony]

Thanks for this!! 🙏