Usability issues in SQL query tab
No shortcut for run
CTRL+R or CMD+R on MacOS are common shortcuts for a run action. It would be awesome if I would not have to switch to my mouse to click the play button.

Statistics unclear
See the section marked in yellow.I assume 1178 rows refers to scanned rows in ClickHouse, not returned rows.
clickhouse-client has a much clearer way to show all of this info. Could we try to replicate this?
2 rows in set. Elapsed: 0.008 sec. Processed 8.19 thousand rows, 589.90 KB (1.04 million rows/s., 75.24 MB/s.)

Column / table searchbar is hard to use
It's not clear what the searchbar is supposed to do. Filter tables based on column names?
- It's very slow when a few thousand tables are in the schema ** I understand that this is a client-side implementation and network latency might be an issue.
- There should be a way to filter tables by name to work with large schemas.

List scroll bar is almost invisible due to color scheme
Dark grey on dark grey just doesn't do it ;)

Don't get me wrong guys! The tool is awesome already!
I made some changes in my fork. Regarding the issues mentioned above I addressed the following ones:
- use filtering capabilities of el-tree-v2 to allow searching for non-empty tables, searching by database, table and column name
- add a shortcut to run SQL queries
- provide more clear table statistics
Please see https://github.com/dgloeckner/ClickCat/tree/improve-ux
Thank you @dgloeckner. Could you create a pr? We'll merge these changes.
@wangqinghuan thanks and here's the PR: https://github.com/clickcat-project/ClickCat/pull/6