small improvements:

- add colorview component
 - improve generic action column
 - improve generic table
 - improve event-type-table.component.ts
 - add headerText to admin layout

admin/src/app/components/generic-table/column-definition.interface.ts

@@ -5,8 +5,6 @@ export interface TypeDefinition{
   params?: Record<string, any>;
 }
 
-
-
 export interface ColumnDefinition<T> {
   attribute: keyof T;
   type: TypeDefinition;