Aim

- Change logging level for reporter debug messages (alberttorosyan)
- Fix styling issues on the experiment page (KaroMourad)
- Fix client side worker port calculation for RTS (mihran113)
- Add discord community link in the sidebar (arsengit)
- Display experiments descriptions in the explorers tables (arsengit)

- Fix issue with index container lock for older repos (mihran113)
- Fix issue with rendering incorrect empty-illustration content in Audios explorer (KaroMourad)

Enhancements:

- Implement Aim callbacks system and extended notifications (alberttorosyan)
- Add chart legends to the Metrics Explorer (KaroMourad)
- Implement vertically scalable version of Remote Tracking (mihran113, alberttorosyan)
- Add the ability to search, filter, and compare audio through Audios Explorer (VkoHov)
- Add epoch tracking for PyTorch Lightning (tmynn)
- Add PaddlePaddle integration (tmynn)
- Add Optuna integration (tmynn)
- Use `packaging` to parse version strings (jangop)
- Implement the experiment page for the overall experiment info view (VkoHov)
- Implement dynamic flushing mechanism for `CheckIn`s based on the flag (mahnerak)
- Implement robust locking and indexing mechanism for Aim Runs (alberttorosyan)

Fixes:

- Fix multiple progress bars handling for terminal logs capturing (mihran113)
- Handle resources when multiple `Ctrl-C`s are pressed (alberttorosyan)
- Remove non unicode symbols from `aim up` command logs (mihran113)
- Fix "Show Table Diff" for list type elements in runs, params and scatters explorers (kumarshreshtha)
- Support non-Latin chars for encoding in Aim UI (roubkar)
- Make new `CheckIn`s always override the expiry date, consistent to what is documented (mahnerak)

- Fix dropdowns' selected options losses in time of searching other options in Figures Explorer (rubenaprikyan)
- Fix the group property name visibility in the images and audio tabs (VkoHov)
- Change the color contrast of the icons in the manage columns popover (VkoHov)
- Add notifier config files to aim package (alberttorosyan)
- Fix audios to numpy conversion (mihran113)

- Fix search for empty queries in explorers (KaroMourad)

- Add support to sync explorer state through url on Base and Figures Explorers (rubenaprikyan)
- Add support to highlight syntax error in Figures Explorer (KaroMourad)
- Fix issue with applying solid stroke styles on stroke badge in table (KaroMourad)
- Fix active runs indicators overlapping issue in LineChart (KaroMourad)
- Add support for text style formatting in the logs tab (VkoHov)
- Fix "`TypeError: check()` keywords must be strings" for `Run.metrics()` method (alberttorosyan)
- Fix run info API call error when tag color/description is None (alberttorosyan)
- Fix remote heartbeat resource cleanup (mihran113)