Add queryParamsStore

[techniq]

• [x] Support simple types (numbers, strings, booleans)
• [x] Support objects
• [x] Support arrays
  • Return array even if single item
  • Arrays of simple types
  • Arrays of objects
• [x] Handle datatype changing when only a single vs multiple selected (ex. select with a single vs multiple values)
• [ ] Provide better errors when config not found (at least include param name)
• [ ] Support updating single param with queryParamsStore
  • Either support property and only update those with keys passed (require null / undefined to remove) or expose function from store to set
• [ ] Support specifying pushState (browser back) vs replaceState
• [ ] Attempt to guess paramType based on default value and/or current params set?
  • Might be confusing when breaks in certain conditions
• [ ] Consider supporting Number and [Number] along with 'number' and 'number[]' (etc)?
  • Support both formats?
  • What about json (JSON), object (Object)?
  • What about date vs datetime?
    • Maybe Date is bound to datetime and date is handled by passing in an implementation object with encode/decode (see below)
  • Support a custom format in the future (UTC date vs local date, etc)
    • Maybe passing in an implementation object with encode/decode (see below)
• [ ] Consider supporting explicit object with {encode: ..., decode: ....}?
• [ ] Differentiate between null and undefined
  • Should only undefined delete the value (null is persisted)? Example: active/inactive/all toggles

Useful links

• https://developer.mozilla.org/en-US/docs/Web/API/URLSearchParams
• Svelte
  • https://stackoverflow.com/questions/57181704/svelte-components-store-load-state-into-from-url-hash-parameters
• React
  • https://github.com/pbeshai/use-query-params
    • https://github.com/pbeshai/serialize-query-params
  • https://github.com/rudyhuynh/use-url-search-params
  • Using React Hooks to sync your component state and the URL Query string
  • The Easiest Way to Use Query Parameters in React
• Libraries
  • https://github.com/sindresorhus/query-string (6.3k)
  • https://github.com/ljharb/qs (10.2k - 27.9k)
  • https://github.com/lukeed/qss (757b)