Bugfixes for PBT

🏗 Enhancements

• Add configspace conversion @Delaunay (#832)
• no singleton test @Delaunay (#942)
• Simplify tree.py @lebrice (#966)
• Minor refactor: Make creation of Experiment objects more explicit @lebrice (#968)
• [dashboard/experiments/database] make columns sortable, except non-singleton array columns @notoraptor (#969)
• [dashboard/DB page] Display only 7 first characters of trial ID in ID column. @notoraptor (#960)
• [dashboard] Display trials for selected experiment in Database page @notoraptor (#944)
• Add a dashboard launcher @notoraptor (#943)
• [dashboard/experiments/database page] New table framework @notoraptor (#975)
• [dashboard/experiments/navbar] Remove (x) icon on experiment menu and rely on highlight only @notoraptor (#970)
• Small fixes @abergeron (#964)
• [dashboard/db page] DIsplay parameters in separated flattened columns after ID column @notoraptor (#961)
• Add repr to dbs to help debug with orion db test @bouthilx (#958)
• Remove experiment from Trial hash @bouthilx (#950)

🐛 Bug Fixes

• Fix bug with algo param_names @lebrice (#947)
• Fix PBT issues with working dir and promotion of max fidelity trials @bouthilx (#903)

📜 Documentation

• Fix some documentation formatting @abergeron (#946)
• Add more info on how trial config is passed to scripts @bouthilx (#957)

🧰 Maintenance

• Fix pre-commit issues present in develop @lebrice (#967)
• Replace (part of) pretest of CI with Pre-commit equivalent @lebrice (#918)
• Fix ConfigSpace dependency issue @bouthilx (#955)
• Ignore .post in version for backward comp tests. @bouthilx (#949)
• Add mongodb & test_no_extras to pypi test deps @bouthilx (#940)