- Remove "|" from test case name if nothing before it

- Improve search suggestions design
- Move select chip into separate component for cleaner management
- Removed TestCaseDixiemes and replaced with TestCaseFilters (with representative test cases toggle on by default)
- Moved explanatory text from TestCaseDixiemes to TestCaseFilters and show it only when representative test cases toggle is on
- Cleaner code for "cockade" icon for representative test cases
- Fix lag when opening VariableDetail by adding skeleton load to budget