Fix not finishing output path with slash

[JeyM1]

Describe the bug 👀

When job is assigned, and rendered, it tries to save directly where user entered, but there is problem if user not entered last slash.

How to reproduce 🏃:

1. Go to '...'
2. Click on '....'

Expected behavior 🙌

A clear and concise description of what you expected to happen.

Screenshots ✨

System information

Desktop 💻:

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone 📱:

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context 🌞

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