duplicate labels for qtbase "qt/qtbase" and "qt/tqtc-qtbase"

We should be consistent with module labeling. Recently for complex reasons new module labeling was added" qt/tqtc-qtbase" only for tqtc/lts-6.2 branch . Its very confusing and makes using dashboards unnecessary complicated.
We also store data from other tqtc branches for example tqtc/lts-5.15 but then qtbase is labeled as "qt/qtbase".
So the naming is not consistent.

To make t even more confusing some data is stored as:
branch tqtc/lts-5.15 and project qt/tqtc-qtbase

See below for examples:

tqtc_branches_qt/qtbase_last_2_days.csv have data for query:
SELECT * FROM workitem WHERE project = 'qt/qtbase' and time > now() - 2d
filtered by only tqtcs branches

tqtc_branches_qt_tqtc_qtbase_last_2_days.csv have data for query:
"SELECT * FROM workitem WHERE project = 'qt/tqtc-qtbase' and time > now() - 2d"