Add initial Linux support #150

Key features of Linux support:
- It supports python 3 scripts execution.
- It supports Flatpak and Snap installation for software
  clean-up/configurations.
- Extensive documentation.

src/infrastructure/CodeRunner.ts

@@ -26,6 +26,8 @@ export class CodeRunner {
 
 function getExecuteCommand(scriptPath: string, environment: Environment): string {
   switch (environment.os) {
+    case OperatingSystem.Linux:
+      return `x-terminal-emulator -e '${scriptPath}'`;
     case OperatingSystem.macOS:
       return `open -a Terminal.app ${scriptPath}`;
     // Another option with graphical sudo would be