Fix: lazygit crash on startup because of terminal name update

[jpthompson212]

PR Description

Please check if the PR fulfills these requirements

• Cheatsheets are up-to-date (run go generate ./...)
• Code has been formatted (see here)
• Tests have been added/updated (see here for the integration test guide)
• Text is internationalised (see here)
• If a new UserConfig entry was added, make sure it can be hot-reloaded (see here)
• Docs have been updated if necessary
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[stefanhaller]

Looks reasonable, but I'd be curious what the error was, and whether we are looking at some other root cause that might be fixed earlier on.

[jpthompson212]

I can try and debug it some more and figure out what might be the root cause, but in general failing to rename the terminal should not cause a crash the application.