Normalise mouse keycodes

[fauxpark]

Description

KC_MS_UP -> QK_MOUSE_CURSOR_UP
KC_MS_U -> MS_UP
KC_MS_DOWN -> QK_MOUSE_CURSOR_DOWN
KC_MS_D -> MS_DOWN
KC_MS_LEFT -> QK_MOUSE_CURSOR_LEFT
KC_MS_L -> MS_LEFT
KC_MS_RIGHT -> QK_MOUSE_CURSOR_RIGHT
KC_MS_R -> MS_RGHT
KC_MS_BTN1 -> QK_MOUSE_BUTTON_1
KC_BTN1 -> MS_BTN1
KC_MS_BTN2 -> QK_MOUSE_BUTTON_2
KC_BTN2 -> MS_BTN2
KC_MS_BTN3 -> QK_MOUSE_BUTTON_3
KC_BTN3 -> MS_BTN3
KC_MS_BTN4 -> QK_MOUSE_BUTTON_4
KC_BTN4 -> MS_BTN4
KC_MS_BTN5 -> QK_MOUSE_BUTTON_5
KC_BTN5 -> MS_BTN5
KC_MS_BTN6 -> QK_MOUSE_BUTTON_6
KC_BTN6 -> MS_BTN6
KC_MS_BTN7 -> QK_MOUSE_BUTTON_7
KC_BTN7 -> MS_BTN7
KC_MS_BTN8 -> QK_MOUSE_BUTTON_8
KC_BTN8 -> MS_BTN8
KC_MS_WH_UP -> QK_MOUSE_WHEEL_UP
KC_WH_U -> MS_WHLU
KC_MS_WH_DOWN -> QK_MOUSE_WHEEL_DOWN
KC_WH_D -> MS_WHLD
KC_MS_WH_LEFT -> QK_MOUSE_WHEEL_LEFT
KC_WH_L -> MS_WHLL
KC_MS_WH_RIGHT -> QK_MOUSE_WHEEL_RIGHT
KC_WH_R -> MS_WHLR
KC_MS_ACCEL0 -> QK_MOUSE_ACCELERATION_0
KC_ACL0 -> MS_ACL0
KC_MS_ACCEL1 -> QK_MOUSE_ACCELERATION_1
KC_ACL1 -> MS_ACL1
KC_MS_ACCEL2 -> QK_MOUSE_ACCELERATION_2
KC_ACL2 -> MS_ACL2

Types of Changes

• Core
• Bugfix
• New feature
• Enhancement/optimization
• Keyboard (addition or update)
• Keymap/layout/userspace (addition or update)
• Documentation

Issues Fixed or Closed by This PR

Checklist

• My code follows the code style of this project: C, Python
• I have read the PR Checklist document and have made the appropriate changes.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.
• I have read the CONTRIBUTING document.
• I have added tests to cover my changes.
• I have tested the changes and verified that they work and don't break anything (as well as I can manage).