Ice Layer Data Model (#1262)

* prototype for ice seperation

* feat: migrate ice data to new data model and update version to 1.110.0

* refactor: update ice data handling and rendering for improved performance

* feat: integrate ice generation and recalculation in heightmap editing

* fix ice selection(hopefully)

* fix ice selection better(pls)

* refactor: remove redundant element selection in ice editing functions

* fix: clear ice data before generating glaciers and icebergs

* sparse array implementation with reduced updates

* fix logic chech in modules/dynamic/auto-update.js

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* fix: migrate ice data to new data model structure

* refactor: streamline ice generation process and clean up rendering functions

* refactor: simplify ice rendering logic by removing redundant clearing of old SVG

* fix: update editIce function to accept element parameter and improve logic for glacier handling

* ice drawing with only type on less occuring glaciers

* feat: add compactPackData function to filter out undefined glaciers and icebergs

* fix: clear existing ice elements before redrawing in editHeightmap function

* fix compact problems on autosave

* refactor: unify ice data structure and streamline ice element handling

* refactor: improve getNextId function to fill gaps in ice element IDs(optional commit)

* just to be sure

* bump version in html

* fix index.html script import

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

public/versioning.js

@@ -13,7 +13,7 @@
  * Example: 1.102.2 -> Major version 1, Minor version 102, Patch version 2
  */
 
-const VERSION = "1.110.0";
+const VERSION = "1.111.0";
 if (parseMapVersion(VERSION) !== VERSION) alert("versioning.js: Invalid format or parsing function");
 
 {