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/elements/title.sass

@@ -0,0 +1,70 @@
+@import "../utilities/mixins"
+
+$title-color: $text-strong !default
+$title-family: false !default
+$title-size: $size-3 !default
+$title-weight: $weight-semibold !default
+$title-line-height: 1.125 !default
+$title-strong-color: inherit !default
+$title-strong-weight: inherit !default
+$title-sub-size: 0.75em !default
+$title-sup-size: 0.75em !default
+
+$subtitle-color: $text !default
+$subtitle-family: false !default
+$subtitle-size: $size-5 !default
+$subtitle-weight: $weight-normal !default
+$subtitle-line-height: 1.25 !default
+$subtitle-strong-color: $text-strong !default
+$subtitle-strong-weight: $weight-semibold !default
+$subtitle-negative-margin: -1.25rem !default
+
+.title,
+.subtitle
+  @extend %block
+  word-break: break-word
+  em,
+  span
+    font-weight: inherit
+  sub
+    font-size: $title-sub-size
+  sup
+    font-size: $title-sup-size
+  .tag
+    vertical-align: middle
+
+.title
+  color: $title-color
+  @if $title-family
+    font-family: $title-family
+  font-size: $title-size
+  font-weight: $title-weight
+  line-height: $title-line-height
+  strong
+    color: $title-strong-color
+    font-weight: $title-strong-weight
+  &:not(.is-spaced) + .subtitle
+    margin-top: $subtitle-negative-margin
+  // Sizes
+  @each $size in $sizes
+    $i: index($sizes, $size)
+    &.is-#{$i}
+      font-size: $size
+
+.subtitle
+  color: $subtitle-color
+  @if $subtitle-family
+    font-family: $subtitle-family
+  font-size: $subtitle-size
+  font-weight: $subtitle-weight
+  line-height: $subtitle-line-height
+  strong
+    color: $subtitle-strong-color
+    font-weight: $subtitle-strong-weight
+  &:not(.is-spaced) + .title
+    margin-top: $subtitle-negative-margin
+  // Sizes
+  @each $size in $sizes
+    $i: index($sizes, $size)
+    &.is-#{$i}
+      font-size: $size