input preferences: Updates code according to Haiku guidelines

These are the changes using tool clang-format with argument --style=haiku and the changes that were not according to guidelines have been removed.

Change-Id: I2d34370e1e0a112da895001bd220bb82b7086e90
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3827
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

64bit build fix.

Input preferences: fix selection of focus mode

- Replace the popup menu with a BOptionPopUp to simplify the code
- Remove an unused menu to select "warp mode"
- The focus mode is not stored in the mouse settings file
(config/settings_Mouse_settings), it is in another file
(config/settings/system/app_server/mouse). This file is not read or
written directly by mouse preferences, but we get the settings by
asking app_server. However, the code to get these was missing in one
place, resulting in these settings not being correctly initialized.

Fixes #16524

Change-Id: Ia1efc235c9d1a5408e3c6abc2526da7a0a639fa4
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3796
Reviewed-by: Jérôme Duval <jerome.duval@gmail.com>

Input prefs: handle errors

Various error handling cases were missing, which would lead to corrupt
settings and crashes. Add the missing error checks and make sure we
always revert to sane settings in case of problems.

Change-Id: Ib72621d6e4974345f5f6ee88e01a918cbf09d7ea
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3069
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

Input: declare BString to get the Mouse Name

Change-Id: I3476f58839202a6fd8c93e325a15045963a9b7b2
Reviewed-on: https://review.haiku-os.org/c/haiku/+/3125
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

Added 6th button in Mouse GUI

- Correct button size of 4 and 5 buttons in Mouse GUI.
- Button number are in squence now, added the default values.

Change-Id: I915077d11f9212c47c782fd9296b9f5b8909ed09
Reviewed-on: https://review.haiku-os.org/c/haiku/+/2509
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>

Actually handle more than 3 mouse buttons

The code in input_server was pretty much all set for this, but there was
no way to configure the extra buttons. Add them to the mouse view in
Input preferences (up to 5 buttons are handled now)

Define a new B_MOUSE_BUTTON(n) macro to generate the bitmask for a given
button (numbered from 1).

Change-Id: I9091082277937d89b08464ff474e7bbb5db82401
Reviewed-on: https://review.haiku-os.org/c/haiku/+/180
Reviewed-by: waddlesplash <waddlesplash@gmail.com>

Completed Mouse and Touchppad preferences

Complete working and view of pointing devices(mouse and touchpad).

Resolve some issues.
Added the Jamfile

Change-Id: I4db021cb8c63971e5af60bd254c8b3b588d023e9
Reviewed-on: https://review.haiku-os.org/c/1426
Reviewed-by: Adrien Destugues <pulkomandy@gmail.com>