Exercises should not depend on search,
so they get their own module.

This is done as to reduce the file size
and complexity of the exercise-details component.

This line was removed in a (foolish) commit
to development. It should remain in place,
otherwise the displayed hit count is messed
up when the search input changes.

Previously, hitCount was increased every time
a new batch of results was loaded.

Previously, hitCount was increased every time
a new batch of results was loaded.

added GitlabService.java to offer basic gitlab api functionalities like check if repo exists etc. , added check in StatisticsResource to avoid people sending get requests with IDs which not exist and therefore create lots of trash entities

layouting

The new search-dropdown component HTML still
includes references to the search component.
Put these in a comment to allow compilation.
Since the component is not in use,
this problem only needs to be addressed if this
dropdown is used in the future.