refractor: self service module (#291)

* Refractor components.
* Improve responsiveness of components.
* Add task management component.
* Add users data resolver.
* Add relative router links.
* Replace mat-icons by font-awesome icons.
* Add comments.

Fixes #290

src/app/self-service/users/edit-user/edit-user.component.ts

@@ -1,5 +1,11 @@
+/** Angular Imports */
 import { Component, OnInit } from '@angular/core';
 
+/**
+ * Edit self service user component.
+ *
+ * TODO: Complete functionality once API is available.
+ */
 @Component({
   selector: 'mifosx-edit-user',
   templateUrl: './edit-user.component.html',
@@ -7,9 +13,16 @@ import { Component, OnInit } from '@angular/core';
 })
 export class EditUserComponent implements OnInit {
 
-  officeData: string[];
-  staffData: string[];
-  genderData: string[];
+  /** Placeholder for office data. */
+  officeData: any;
+  /** Placeholder for staff data. */
+  staffData: any;
+  /** Placeholder for gender data. */
+  genderData: any;
+  /** Minimum date of birth of user allowed. */
+  minDate = new Date(1900, 0, 1);
+  /** Maximum date of birth of user allowed. */
+  maxDate = new Date();
 
   constructor() { }