[Frontend] Change layout on Expense edit form

[FelipePSoares]

Today is almost impossible edit expense on mobile, because the fields are to small.

To ensure that the user can have the best experience, we need to change the layout to work well on mobile.

During this modification we can apply the same system that we have on add forms to show errors. for example this name field in add-expense:

@if (name?.invalid && name?.touched){
    <mat-error *ngFor="let error of getFormFieldErrors('name')">{{ error }}</mat-error>
}