Tor Launcher strips "bridge" from the middle of bridge lines
I tried configuring a meek bridge on a URL with "bridge" in the domain name.
```
bridge meek 0.0.2.0:5 url=https://bridge.example.com/
```
When I clicked Connect, "bridge" disappeared from the URL and broke the configuration.
```
bridge meek 0.0.2.0:5 url=https://.example.com/
```
issue