Occlusion centre is incorrect during e`x`amine

Describe the bug

The occlusion centre stays with your character for minor cursor movements Panning results in the centre remaining where it is relative to the screen

Attach save file

East Renton Highlands-trimmed.tar.gz Will throw a couple of errors bc of missing terrain unless you add the below to your json but they should be ignorable

  {
    "type": "mapgen",
    "method": "json",
    "om_terrain": [ "casings" ],
    "object": { "fill_ter": "t_region_groundcover", "item": { " ": { "item": "4570_casing", "chance": 100 } } }
  },
  {
    "type": "overmap_terrain",
    "id": "casings",
    "name": "nothing",
    "sym": "%",
    "color": "white",
    "flags": [ "NO_ROTATE" ]
  },
  {
    "type": "overmap_special",
    "id": "casings",
    "overmaps": [
      { "point": [ 0, 0, 0 ], "overmap": "casings" },
      { "point": [ 1, 0, 0 ], "overmap": "casings" },
      { "point": [ 2, 0, 0 ], "overmap": "casings" },
      { "point": [ 0, 1, 0 ], "overmap": "casings" },
      { "point": [ 0, 2, 0 ], "overmap": "casings" },
      { "point": [ 1, 1, 0 ], "overmap": "casings" },
      { "point": [ 2, 1, 0 ], "overmap": "casings" },
      { "point": [ 1, 2, 0 ], "overmap": "casings" },
      { "point": [ 2, 2, 0 ], "overmap": "casings" }
    ],
    "locations": [ "field" ],
    "occurrences": [ 0, 8 ]
  }

Steps to reproduce

Switch to an iso tileset unless #74445 is merged
Turn on auto occlusion with a small range (10 is fine)
Examine and move the cursor around either with keyboard or mouse

Expected behavior

Ideally the occlusion should follow the cursor or follow the cursor but also remain around the player, but even just staying with the player would be better than the current functionality imo

Screenshots

Versions and configuration

OS: Windows
- OS Version: 10.0.19045.4412 (22H2)
Game Version: cdda-experimental-2024-06-09-1457 b5f19f9ac5-dirty [64-bit]
Graphics Version: Tiles
Game Language: System language []
Mods loaded: [ Dark Days Ahead [dda], Disable NPC Needs [no_npc_food], Portal Storms Ignore NPCs [personal_portal_storms], Slowdown Fungal Growth [no_fungal_growth] ]

Additional context

No response

CleverRaven / Cataclysm-DDA