Added a web-frontend to add companies to the search queue. (#375)

This webfrontent adds a company to the search que or resets the search
que entry to be searched again.
This will allow for directed growth or an initiallisation.

---------

Co-authored-by: Tristan Nolde <tristan.nolde@yahoo.de>

tests/ui/about_test.py

@@ -1,5 +1,5 @@
 """Tests if the about page can be created."""
-from dash.development.base_component import Component
+from dash import html
 
 from aki_prj23_transparenzregister.ui import app
 from aki_prj23_transparenzregister.ui.pages import about
@@ -10,6 +10,4 @@ _ = app
 def test_layout() -> None:
     """Checks if the about page can be created."""
     result = about.layout()
-    assert isinstance(result, list)
-    for e in result:
-        assert isinstance(e, Component)
+    assert isinstance(result, html.Div)