Compiles css framework from sass (#1956)

* Compiles css framework from sass

* Adds watch commands

* Copies existing css to sass file

* Moves sass out of static path

* Removes global linter

I wasn't sure how to customize this, and it's not providing a lot of
additional value on top of the domain-specific linters

* Reverts invalid change to dockerfile

* Changes stylelint path

* Remove unused bulma files

* Properly minifies generated css

* Fixes regression in thread display

* rgba function only works with percents for whatever reason

* Hush stylelint

* Removes trailing zeros

* Compile sass in Django

Co-authored-by: Joachim <joachim.robert@protonmail.com>

* Python formatting

* Updates linter

* Updates commands

* Adds css-config file

Co-authored-by: Joachim <joachim.robert@protonmail.com>

* Stylelint fix

* Removes unused compiled bulma files

Co-authored-by: Joachim <joachim.robert@protonmail.com>

bookwyrm/static/css/vendor/bulma/sass/base/minireset.sass

@@ -0,0 +1,79 @@
+/*! minireset.css v0.0.6 | MIT License | github.com/jgthms/minireset.css */
+// Blocks
+html,
+body,
+p,
+ol,
+ul,
+li,
+dl,
+dt,
+dd,
+blockquote,
+figure,
+fieldset,
+legend,
+textarea,
+pre,
+iframe,
+hr,
+h1,
+h2,
+h3,
+h4,
+h5,
+h6
+  margin: 0
+  padding: 0
+
+// Headings
+h1,
+h2,
+h3,
+h4,
+h5,
+h6
+  font-size: 100%
+  font-weight: normal
+
+// List
+ul
+  list-style: none
+
+// Form
+button,
+input,
+select,
+textarea
+  margin: 0
+
+// Box sizing
+html
+  box-sizing: border-box
+
+*
+  &,
+  &::before,
+  &::after
+    box-sizing: inherit
+
+// Media
+img,
+video
+  height: auto
+  max-width: 100%
+
+// Iframe
+iframe
+  border: 0
+
+// Table
+table
+  border-collapse: collapse
+  border-spacing: 0
+
+td,
+th
+  padding: 0
+  &:not([align])
+    text-align: inherit