add simple debug prompt to make it easier to debug on mobile devices

frontend/src/components/overlays/Settings.svelte

@@ -4,10 +4,37 @@
     import { logOut } from "../../auth";
     import { maybeModalFade, maybeModalFly } from "../../animations";
     import request from "../../request";
-    import { apiRoute } from "../../storage";
+    import { apiRoute, getItem } from "../../storage";
 
     const close = () => overlayStore.close("settings");
 
+    const doDeveloper = () => {
+        overlayStore.open("prompt", {
+            heading: "",
+            valueName: "",
+            async onSubmit(value) {
+                const parts = value.split("##");
+                if (parts.length < 1) {
+                    return;
+                }
+
+                const respond = (value) => {
+                    overlayStore.close("prompt");
+                    overlayStore.open("toast", { message: value });
+                };
+
+                switch (parts[0]) {
+                    case "storage.getItem": {
+                        return respond(getItem(parts[1]));
+                    }
+                    default: {
+                        return respond("Error: unknown operator");
+                    }
+                }
+            },
+        });
+    };
+
     const doLogout = () => {
         close();
         logOut();
@@ -70,7 +97,7 @@
 
 <div class="modal-backdrop" transition:maybeModalFade on:click="{ close }">
     <div class="modal" class:large-settings="{ !$smallViewport }" transition:maybeModalFly on:click|stopPropagation>
-        <span class="input-label">Account</span>
+        <span class="input-label" on:click={ doDeveloper }>Account</span>
         <div class="settings-card full-width">
             <AtSignIcon />
             <span class="h5 top-bar-heading">{ $userInfoStore ? $userInfoStore.username : "" }</span>