Add filter state management

[cssuh]

Adds filter state management

Before:
filters were only tracked on a column.id level, which led to issues like #18514.

After:
Filters are tracked at a (query editor) uri level, containing multiple sets of filters for each grid id and column id respectively.

I also added a singleton store, which allows us to store state outside of the react state (this is needed in cases where we don't want to trigger a re-render which happens every time the react state is updated). We don't need to re-render here because that is triggered and managed by the slickgrid library.

Fixes #18514

[github-actions]

PR Changes

Category	Main Branch	PR Branch	Difference
Code Coverage	50.43%	50.60%	$${\color{lightgreen} .17\% }$$
VSIX Size	12140 KB	12142 KB	$${\color{lightgreen} 2 KB \space (0\%) }$$
Webview Bundle Size	3176 KB	3176 KB	$${\color{lightgreen} 0 KB \space (0\%) }$$