[FIX][UX] Added icon as placeholder instead of extra label. Removed the...

[FIX][UX] Added icon as placeholder instead of extra label. Removed the mandatory asterisk (only one field). Use proper bootstrap classes and place the button at the end of the input field.

This is how it should look:

On this Tiki (screenshot) I added an extra bootstrap classes to center things properly. Not sure if this will be good for every one so I didn't added it to the commit.

<div class="form-inline justify-content-center row"> instead of <div class="form-inline row">