Try to fix paths in coverage report generation

- Add the local path to coverage config
- Fix the paths before generating an HTML report

.gitlab-ci.yml

@@ -68,6 +68,7 @@ pages:
   image: openlp/debian
   script:
     - python3-coverage combine linux.coverage macos.coverage
+    - fixpaths .coverage
     - python3-coverage html
     - mv htmlcov public
     - python3-coverage report

setup.cfg

@@ -23,3 +23,10 @@ max-line-length = 120
 # W503 line break before binary operator
 # W504 line break after binary operator
 ignore = E402,W503,W504
+
+# Coverage configuration
+[paths]
+source =
+    ./
+    /builds/openlp/openlp/
+    /Users/raoul/Library/Application Support/gitlab-runner/builds/*/*/openlp/openlp/