fix: break import cycles

import/no-cycle (now active) flagged 17 cycles across 12 files:

- shared/ui self-barrel cycles (Logo/Stat/StatGroup/ComboControl/
  FilterGroup/SectionHeader): import siblings relatively instead of
  through the $shared/ui barrel that re-exports them
- shared/lib/utils: roundToStepPrecision imports getDecimalPlaces
  relatively instead of via the utils barrel
- routes: lazy-load Redirect in the router so it no longer statically
  imports a component that imports navigate back from it

src/shared/lib/utils/roundToStepPrecision/roundToStepPrecision.ts

@@ -1,4 +1,4 @@
-import { getDecimalPlaces } from '$shared/lib/utils';
+import { getDecimalPlaces } from '../getDecimalPlaces/getDecimalPlaces';
 
 /**
  * Rounds a value to match the precision of a given step