refactor(i18n): rename "Local Server URL" → "Local Jellyfin URL"

[v3DJG6GL]

Pull Request Description

• Rename "Server" → "Jellyfin" in three localization strings for the "Local Server URL" settings entry, to be clearer about what the URL is for. "Local Server" could also mean local Seerr server or anything else.

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UI

• settingsLocalUrlTitle: "Local Server URL" → "Local Jellyfin URL"
• settingsLocalUrlSetTitle: "Configure Local URL" → "Configure Local Jellyfin URL"
• settingsLocalUrlSetDesc: "Specify the local server address…" → "Specify the local Jellyfin address…"

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Issue Being Fixed

N/A

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Screenshots

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Tested On

• Android
• Android TV
• iOS
• Linux
• Windows
• macOS
• Web

Checklist

• If a new package was added, did you ensure it works for all supported platforms?
• Check that any changes are related to the issue at hand.