[#167] Expand textarea for sentence input; use untrack to break recursive reactivity loops hanging the page on long sentences; Use better error message instead of ERROR (#182)

src/routes/(app)/learn/sentence/configuration.ts

@@ -0,0 +1,29 @@
+export interface PageParam<T> {
+  key: string;
+  default: T;
+  parse?: (value: string) => T;
+}
+
+export const SENTENCE_TRAINER_PAGE_PARAMS: {
+  sentence: PageParam<string>;
+  wpm: PageParam<number>;
+  showDevTools: PageParam<boolean>;
+  textAreaDebounceInMillis: PageParam<number>;
+} = {
+  sentence: { key: "sentence", default: "This text has been typed at the speed of thought" },
+  wpm: {
+    key: "wpm",
+    default: 250,
+    parse: (value) => Number(value),
+  },
+  showDevTools: {
+    key: "dev",
+    default: false,
+    parse: (value) => value === "true",
+  },
+  textAreaDebounceInMillis: {
+    key: "debounceMillis",
+    default: 5000,
+    parse: (value) => Number(value),
+  },
+};