Use an sqlite3 database for timer feature

There were some other small edits as well, mostly formatting or better
logging in certain functions

util/timer/convertJSONToSQL.js

@@ -0,0 +1,33 @@
+const fs = require('fs');
+const sqlite3 = require('sqlite3').verbose();
+module.exports = async function () {
+    const timers = require('../../data/timers.json')
+    const db = new sqlite3.Database('data/database.db');
+    return new Promise((resolve, reject) => {
+        for (let i = 0; i < timers.length; i++) {
+            let user = timers[i].user;
+            let reminderTime = timers[i].reminderDate;
+            let channel = timers[i].channel;
+            let customMessage = timers[i].customMessage;
+            let hasPassed = false;
+
+            db.run(`INSERT INTO timers (
+                user, 
+                reminderTime, 
+                channel, 
+                customMessage, 
+                hasPassed
+                ) VALUES (?, ?, ?, ?, ?)`, [user, reminderTime, channel, customMessage, hasPassed], function (error) {
+                if (error) {
+                    console.error(`Error while converting timers.json to SQL: ${error}`)
+                    reject(error);
+                }
+            }) 
+
+
+        }
+        db.close();
+        console.log("Converted timers.json to SQL successfully.");
+        resolve();
+    })
+}