v3: Migrate packages to monorepo

[jeetiss]

• migrate wouter and wouter-preact to monorepo
• export only esm, drop cjs exports
• test with jest (but coverage is broken)

[codecov]

Codecov Report

Patch coverage has no change and project coverage change: -100.00 ⚠️

Comparison is base (30362e2) 100.00% compared to head (e5544ca) 0.00%.

❗ Current head e5544ca differs from pull request most recent head 7e455a9. Consider uploading reports for the commit 7e455a9 to get more accurate results

Additional details and impacted files

@@             Coverage Diff              @@
##                v3    #318        +/-   ##
============================================
- Coverage   100.00%   0.00%   -100.00%     
============================================
  Files            6       1         -5     
  Lines          228       6       -222     
  Branches        56       2        -54     
============================================
- Hits           228       0       -228     
- Misses           0       4         +4     
- Partials         0       2         +2     

see 6 files with indirect coverage changes

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[molefrog]

Limits are increased, may I ask why?

[jeetiss]

to make size-limit happy)

I included react-deps.js to bundle-size test and it not only increases the size but causes some deoptimizations i guess:

• wouter/packages/wouter/src/react-deps.js

  Lines 4 to 9 in e5544ca

  	const {
  	useEffect,
  	useLayoutEffect,
  	useRef,
  	useInsertionEffect: useBuiltinInsertionEffect,
  	} = React;

this code can be deleted and included in final size tests

[jeetiss]

it should be

import { 
   useEffect, 
   useLayoutEffect, 
   useRef, 
   useInsertionEffect as useBuiltinInsertionEffect, 
 } from 'react'; 

to fix all three-shaky stuff

[jeetiss]

but it can break some old react versions that doesn't provide useInsertionEffect

[molefrog]

In the root, there is a file paths.js I guess we don't need it anymore.

[molefrog]

In the root, there is a file paths.js I guess we don't need it anymore.