Added a cpu temperature custom module. (#446)

* Added a CPU Temperature module.

* Update defauls and add wiki link.

* Move celsius to fahr conversion to method.

customModules/cputemp/helpers.ts

@@ -0,0 +1,37 @@
+import GLib from 'gi://GLib?version=2.0';
+import { convertCelsiusToFahrenheit } from 'globals/weather';
+import { UnitType } from 'lib/types/weather';
+import options from 'options';
+import { Variable } from 'types/variable';
+const { sensor } = options.bar.customModules.cpuTemp;
+
+/**
+ * Retrieves the current CPU temperature.
+ * @returns CPU temperature in degrees Celsius
+ */
+export const getCPUTemperature = (round: Variable<boolean>, unit: Variable<UnitType>): number => {
+    try {
+        if (sensor.value.length === 0) {
+            return 0;
+        }
+
+        const [success, tempInfoBytes] = GLib.file_get_contents(sensor.value);
+        const tempInfo = new TextDecoder('utf-8').decode(tempInfoBytes);
+
+        if (!success || !tempInfoBytes) {
+            console.error(`Failed to read ${sensor.value} or file content is null.`);
+            return 0;
+        }
+
+        let decimalTemp = parseInt(tempInfo) / 1000;
+
+        if (unit.value === 'imperial') {
+            decimalTemp = convertCelsiusToFahrenheit(decimalTemp);
+        }
+
+        return round ? Math.round(decimalTemp) : parseFloat(decimalTemp.toFixed(2));
+    } catch (error) {
+        console.error('Error calculating CPU Temp:', error);
+        return 0;
+    }
+};