New fix for fixing URLs with '//'

[vraravam]

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Description of Change

Reverted previous fix from #103 and added new changes as per comment

Motivation and Context

Should now be a better fix for #102

Screenshots

Checklist

• My pull request is properly named
• The changes respect the code style of the project (npm run prepare-code)
• npm test passes
• I tested/previewed my changes locally

Release Notes

[vraravam]

Unfortunately, the changes seem to break the app while bootup itself - I dont use Ferdium with any account, but the initial login screen itself doesn't come up for me. I'm unable to take this forward (have travel plans this weekend). If someone can continue and find the fix, i would really appreciate it

[nathanaelhoun]

Instead of fixing the URL everywhere we use it, I propose two alternatives approaches:

1. Modify the form submission to remove a trailing slash (here) with a

   this.form.$('customServer').value = this.form.$('customServer').value.replace(/\/$/, "")

2. Modify the apiBase() and termsBase() methods to remove the trailing slash before returning the value

[vraravam]

2. Modify the apiBase() and termsBase() methods to remove the trailing slash before returning the value

OMG! Thanks for catching the rabbit hole that I was digging!
Will fix both in the next commit in a few mins

[vraravam]

@nathanaelhoun - if you can review this and approve, we can merge for the next nightly

[nathanaelhoun]

Looks good to me!