[bug] Clipboard database won't get persisted across app versions #299

Describe the bug A clear and concise description of what the bug is.

The clipboard.db sqlite db lives in Rustcast.app/Contents/MacOS/clipboard.db.
Since the auto update feature replaces the .app the clipboard history will effectively be wiped.

To Reproduce Steps to reproduce the behavior:
(not possible to reproduce, is a logical error caught before new release)

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

The clipboard.db should be stored in ~/Library/Application Support/Rustcast/clipboard.db

Screenshots If applicable, add screenshots to help explain your problem.
(NA)

Which macos version? (please complete the following information):

• OS: doesn't matter
• Rustcast Version [e.g. v0.8.3]

Additional context Add any other context about the problem here.

A simple way would be to release a mkdir -p ~/Library/Application\ Support/Rustcast && mv /Applications/Rustcast.app/Contents/MacOS/clipboard.db ~/Library/Application\ Support/Rustcast/clipboard.db