Implemented strict linting standards and prettier formatting config. (#248)

* Implemented strict linting standards and prettier formatting config.

* More linter fixes and type updates.

* More linter updates and type fixes

* Remove noisy comments

* Linter and type updates

* Linter, formatting and type updates.

* Linter updates

* Type updates

* Type updates

* fixed all linter errors

* Fixed all linting, formatting and type issues.

* Resolve merge conflicts.

customModules/cpu/computeCPU.ts

@@ -1,10 +1,10 @@
-// @ts-expect-error
+// @ts-expect-error: This import is a special directive that tells the compiler to use the GTop library
 import GTop from 'gi://GTop';
 
 let previousCpuData = new GTop.glibtop_cpu();
 GTop.glibtop_get_cpu(previousCpuData);
 
-export const computeCPU = () => {
+export const computeCPU = (): number => {
     const currentCpuData = new GTop.glibtop_cpu();
     GTop.glibtop_get_cpu(currentCpuData);
 
@@ -17,5 +17,4 @@ export const computeCPU = () => {
     previousCpuData = currentCpuData;
 
     return cpuUsagePercentage;
-}
-
+};