Add globe support in Maputnik UI (#1379)

## Launch Checklist

Add a small drop down to select mercator or globe.
This isn't a fully covered field as one can set an expression there, but
I believe this is good enough for most cases.

Before:
<img width="645" height="254" alt="image"
src="https://github.com/user-attachments/assets/19a7ec50-a0bb-4ea3-b9fc-3abc5572c47e"
/>
After:
<img width="770" height="462" alt="image"
src="https://github.com/user-attachments/assets/f4774020-1cc8-45fe-88f9-f77ad7c53140"
/>


 - [x] Briefly describe the changes in this PR.
- [x] Include before/after visuals or gifs if this PR includes visual
changes.
 - [x] Write tests for all new functionality.
 - [x] Add an entry to `CHANGELOG.md` under the `## main` section.

---------

Co-authored-by: Birk Skyum <birk.skyum@pm.me>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>

cypress/e2e/modals.cy.ts

@@ -236,6 +236,29 @@ describe("modals", () => {
       ).shouldInclude({ "maputnik:locationiq_access_token": apiKey });
     });
 
+    it("style projection mercator", () => {
+      when.select("modal:settings.projection", "mercator");
+      then(
+        get.styleFromLocalStorage().then((style) => style.projection)
+      ).shouldInclude({ type: "mercator" });
+    });
+
+    it("style projection globe", () => {
+      when.select("modal:settings.projection", "globe");
+      then(
+        get.styleFromLocalStorage().then((style) => style.projection)
+      ).shouldInclude({ type: "globe" });
+    });
+
+
+    it("style projection vertical-perspective", () => {
+      when.select("modal:settings.projection", "vertical-perspective");
+      then(
+        get.styleFromLocalStorage().then((style) => style.projection)
+      ).shouldInclude({ type: "vertical-perspective" });
+
+    });
+
     it("style renderer", () => {
       cy.on("uncaught:exception", () => false); // this is due to the fact that this is an invalid style for openlayers
       when.select("modal:settings.maputnik:renderer", "ol");