Fix insertion of access tokens, when swapping renderer (#1021)

Going from e.g. MapTiler to OpenLayers and back will lose the maptlier
key.

This code finds the urls in the style that has "{key}" and insert the
correct API keys

Fixes the error reported here, cc @nyurik 
- Fixes
https://github.com/maplibre/maputnik/issues/874#issuecomment-2605896666

Related to:
- https://github.com/maplibre/maputnik/issues/869

## Launch Checklist

<!-- Thanks for the PR! Feel free to add or remove items from the
checklist. -->


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

cypress/e2e/modals.cy.ts

@@ -1,7 +1,8 @@
 import { MaputnikDriver } from "./maputnik-driver";
+import tokens from "../../src/config/tokens.json" with {type: "json"};
 
 describe("modals", () => {
-  const { beforeAndAfter, when, get, then } = new MaputnikDriver();
+  const { beforeAndAfter, when, get, given, then } = new MaputnikDriver();
   beforeAndAfter();
 
   beforeEach(() => {
@@ -235,6 +236,40 @@ describe("modals", () => {
         metadata: { "maputnik:renderer": "ol" },
       });
     });
+
+
+
+    it("inlcude API key when change renderer", () => {
+      
+      when.click("modal:settings.close-modal")
+      when.click("nav:open");
+
+      get.elementByAttribute('aria-label', "MapTiler Basic").should('exist').click();
+
+      when.click("nav:settings");
+      
+      when.select("modal:settings.maputnik:renderer", "mlgljs");
+      then(get.inputValue("modal:settings.maputnik:renderer")).shouldEqual(
+        "mlgljs"
+      );
+
+      when.select("modal:settings.maputnik:renderer", "ol");
+      then(get.inputValue("modal:settings.maputnik:renderer")).shouldEqual(
+        "ol"
+      );
+
+      given.intercept("https://api.maptiler.com/tiles/v3-openmaptiles/tiles.json?key=*", "tileRequest", "GET");
+      
+      when.select("modal:settings.maputnik:renderer", "mlgljs");
+      then(get.inputValue("modal:settings.maputnik:renderer")).shouldEqual(
+        "mlgljs"
+      );
+
+      when.waitForResponse("tileRequest").its("request").its("url").should("include", `https://api.maptiler.com/tiles/v3-openmaptiles/tiles.json?key=${tokens.openmaptiles}`);
+      when.waitForResponse("tileRequest").its("request").its("url").should("include", `https://api.maptiler.com/tiles/v3-openmaptiles/tiles.json?key=${tokens.openmaptiles}`);
+      when.waitForResponse("tileRequest").its("request").its("url").should("include", `https://api.maptiler.com/tiles/v3-openmaptiles/tiles.json?key=${tokens.openmaptiles}`);
+    });
+    
   });
 
   describe("sources", () => {