Enable nohoist by default

[malash]

In #120 it said nohoist.enable is set to false in development mode to speed up code bundling.
But recently we meet an unexpected issue, that some global CSS styles in a page polluted other page. Consider we have a sub-package packageA and a page packageA/pages/index inside it with these CSS:

:global() {
  page {
    background-color: red;
  }
}

If nohoist.enable was false, these lines of code would be bundled into _goji_commons.wxss and shared by all pages. Which means all pages' background became red.

Therefore, I decided to enable this option by default in case of different behavior on production and development mode.

Also, I tested and found the bundling performance affect is acceptable. See the result of re-bundling time costs ( in ms ) in a large GojiJS project.

nohoist.enable	false	true	Delta
Re-bundling test 1	2312	2358
Re-bundling test 2	1952	1840
Re-bundling test 3	2014	2032
Re-bundling test 4	1779	2116
Re-bundling test 5	1928	1886
Re-bundling test 6	1882	1927
Re-bundling test 7	2012	1794
Re-bundling test 8	1902	1848
Re-bundling test 9	1894	1907
Re-bundling test 10	1939	2029
Average	1961.4	1973.7	0.63%
Truncated mean	1940.375	1948.125	0.40%