fix: changed solid types path

[aleksandrjet]

According to the package.json, types should be located in esm folder:

"exports": {
  ".": {
    "types": "./esm/index.d.ts",
    "import": "./esm/index.js",
    "default": "./dist/solid-imask.js"
  },
}

But due to the settings in tsconfig.json they are generated in dist folder:

"compilerOptions": {
  "declarationDir": "./dist"
}

It throws an error:

Could not find a declaration file for module 'solid-imask'. 
'../node_modules/solid-imask/esm/index.js' implicitly has an 'any' type.
Try `npm i --save-dev @types/solid-imask` if it exists or 
add a new declaration (.d.ts) file containing `declare module 'solid-imask';`

[uNmAnNeR]

thanks