Took TideGear's changes, removed the device/controller implementation…

[utkarshdalal]

… (we vibrate the controller first and then the device), and made the rumble more efficient

Description

Recording

Type of Change

• Bug fix
• Performance / stability improvement
• Compatibility improvements
• Other (requires prior approval)

Checklist

• If I have access to #code-changes, I have discussed this change there and it has been green-lighted. If I do not have access, I have still provided clear context in this PR. If I skip both, I accept that this change may face delays in review, may not be reviewed at all, or may be closed.
• This change aligns with the current project scope (core functionality, stability, or performance). If not, it has been explicitly approved beforehand.
• I have attached a recording of the change.
• I have read and agree to the contribution guidelines in CONTRIBUTING.md.

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Summary by cubic

Makes rumble persistent and smoother, and adds a per‑container vibration intensity control. We now vibrate the controller first and fall back to the device, and re‑arm rumble so it doesn’t cut off early.

• New Features

  • Vibration intensity slider (0–100) in Controller settings; saved per container via PrefManager, ContainerData, and extras, and applied through WinHandler.setVibrationIntensity.
  • Prefer the controller’s vibrator; use the phone’s vibrator only as a fallback. Localized “Vibration Intensity” string added.

• Performance

  • Native evshim keepalive re‑applies the last rumble via SDL_JoystickRumble to prevent the ~1s auto‑stop; sleeps when idle and avoids echoing keepalive updates back into shared memory.
  • Java WinHandler keepalive refreshes one‑shot vibrations without busy polling and cancels cleanly on shutdown to prevent lingering buzz.

^{Written for commit 4b2be67. Summary will update on new commits.}

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