Chore: Check for deprecations using eslint plugin

Chore: environment file replacement stopped.
Chore: All components are now standalone and removed all modules
Chore: App routing is now in app.routes and similarly for all submodules
Chore: Http interceptors are now functional and split refresh interceptor into a separate one.

overlord/src/app/employee-functions/employee-functions.component.ts

@@ -1,6 +1,11 @@
 import { Component } from '@angular/core';
-import { FormControl, FormGroup } from '@angular/forms';
-import { MatDatepicker } from '@angular/material/datepicker';
+import { FormControl, FormGroup, ReactiveFormsModule } from '@angular/forms';
+import { MatButton, MatAnchor } from '@angular/material/button';
+import { MatCard, MatCardContent } from '@angular/material/card';
+import { MatDatepicker, MatDatepickerInput, MatDatepickerToggle } from '@angular/material/datepicker';
+import { MatFormField, MatLabel, MatSuffix } from '@angular/material/form-field';
+import { MatInput } from '@angular/material/input';
+import { MatTabGroup, MatTab } from '@angular/material/tabs';
 import moment from 'moment';
 import { Moment } from 'moment';
 
@@ -12,6 +17,23 @@ import { EmployeeFunctionsService } from './employee-functions.service';
   selector: 'app-employee-functions',
   templateUrl: './employee-functions.component.html',
   styleUrls: ['./employee-functions.component.css'],
+  standalone: true,
+  imports: [
+    MatTabGroup,
+    MatTab,
+    MatCard,
+    MatCardContent,
+    ReactiveFormsModule,
+    MatFormField,
+    MatLabel,
+    MatInput,
+    MatDatepickerInput,
+    MatDatepickerToggle,
+    MatSuffix,
+    MatDatepicker,
+    MatButton,
+    MatAnchor,
+  ],
 })
 export class EmployeeFunctionsComponent {
   creditSalaryForm: FormGroup<{
@@ -61,14 +83,14 @@ export class EmployeeFunctionsComponent {
       this.toaster.show('Danger', 'Please choose a valid date.');
       return;
     }
-    this.ser.creditSalary(date).subscribe(
-      () => {
+    this.ser.creditSalary(date).subscribe({
+      next: () => {
         this.toaster.show('Success', 'Salaries Credited');
       },
-      (error) => {
+      error: (error) => {
         this.toaster.show('Danger', error);
       },
-    );
+    });
   }
 
   attendanceRecordUrl() {
@@ -100,13 +122,13 @@ export class EmployeeFunctionsComponent {
       this.toaster.show('Danger', 'Please choose a file first!');
       return;
     }
-    this.ser.uploadFingerprints(this.fingerprintFile).subscribe(
-      () => {
+    this.ser.uploadFingerprints(this.fingerprintFile).subscribe({
+      next: () => {
         this.toaster.show('Success', 'Fingerprints uploaded');
       },
-      (error) => {
+      error: (error) => {
         this.toaster.show('Danger', error);
       },
-    );
+    });
   }
 }