Added source code files which were left out

src/settings.ts

@@ -0,0 +1,42 @@
+import HabiticaSync from "./main";
+import { App, PluginSettingTab, Setting } from "obsidian";
+
+export class HabiticaSyncSettingsTab extends PluginSettingTab {
+    plugin: HabiticaSync;
+
+    constructor(app: App, plugin: HabiticaSync) {
+        super(app, plugin)
+        this.plugin = plugin
+    }
+
+    display(): void {
+        let { containerEl } = this;
+        containerEl.empty();
+
+        new Setting(containerEl)
+        .setName("Habitica User ID")
+        .setDesc("Can be found in Settings > API")
+        .addText((text) => 
+            text
+                .setPlaceholder("User ID")
+                .setValue(this.plugin.settings.userID)
+                .onChange(async (value) => {
+                    this.plugin.settings.userID = value;
+                    await this.plugin.saveSettings();
+                })
+        );
+
+        new Setting(containerEl)
+        .setName("Habitica API Token")
+        .setDesc("Can be found in Settings > API")
+        .addText((text) => 
+            text
+                .setPlaceholder("API Token")
+                .setValue(this.plugin.settings.apiToken)
+                .onChange(async (value) => {
+                    this.plugin.settings.apiToken = value;
+                    await this.plugin.saveSettings();
+                })
+        );
+    }
+}