Fix actual update - missing hidden files, downloaded release cleanup

[maciejmatczak]

✍️ Description

Fixes #1707.

Update script had different logic around folder and file movement when compared to install script, I followed install script logic.

Update script did not move the hidden files (dotfiles) from newly downloaded release of Actual Budget due to bash, by default, not matching dot files (mv *ctual-server-*/* behavior depends on bash's dotglob option).

The bottom rm -rf of .tar.gz seemed not effective - I updated it to follow install script logic.

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• Related Issue: Actual Budget Update Failing #1707
• Related PR: #
• Related Discussion: #

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✅ Prerequisites

The following steps must be completed for the pull request to be considered:

• Self-review performed (I have reviewed my code to ensure it follows established patterns and conventions.)
• Testing performed (I have thoroughly tested my changes and verified expected functionality.)

🛠️ Type of Change

Please check the relevant options:

• Bug fix (non-breaking change that resolves an issue)
• [] New feature (non-breaking change that adds functionality)
• [] Breaking change (fix or feature that would cause existing functionality to change unexpectedly)
• [] New script (a fully functional and thoroughly tested script or set of scripts)

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📋 Additional Information (optional)

Provide any extra context or screenshots about the feature or fix here.

[MickLesk]

Lgtm