build: align build system with vue 3

[kiaking]

This PR updates the build system for Vuex 4 to align with Vue 3.

• Bundles are now aligned with Vue 3 such as vuex.esm-bundler.js and vuex.global.js.
• Using __DEV__ global variable and rollup replace plugin to handle process.env.NODE_ENV !== 'production' replacement.
• Remove dist folder from commit expect for logger.d.ts, plus organize .gitignore file to match the latest repository structure.
• Make index.js to be the primary esm entry point by renaming index.esm.js to index.js, and renaming index.js to index.cjs.
• Use index file without the build in test cases.
• ⚠️ The "release script" should be updated once build: add conventional changelog support #1707 is merged in dev branch. Included the "release script" as well.

[ktsn]

I guess we need to add !/dist/logger.d.ts ?

[kiaking]

Ah, good point! Yeah I'll add that. logger.d.ts will be tracked regardless of it because it is already committed, but it's nice to have precise definition 👍

[kiaking]

And fixed 👍

[kiaking]

@ktsn Please hold on merging this one. I'll include the changes from #1707 to this PR as well.

[kiaking]

@ktsn OK, I think it's done. I've added next tag to the release script since 4.0 should be always release as next.

[kiaking]

Hah, not sure why e2e test is failing... maybe running again would solve it...?

[kiaking]

Added jsdelivr support, and renamed esm module to esm-bundler to align with the latest Vue 3 commit.

[kiaking]

Hmmm... I still don't know why E2E test is failing on CI. It works locally... 🤔

[kiaking]

YES!!! The test has passed. @ktsn If you were to merge this, please don't forget to squash the commits 😅

[ktsn]

Thank you 🙂