Use Hugo's built-in subresource integrity support

We can use Hugo's built-in SRI support instead of using our custom
SRI generator script (as cool as it was at the time). This is more
clean and gives us the added benefit of adding fingerprints to the
CSS and JS filenames, which acts as a cache buster.

See: https://gohugo.io/hugo-pipes/introduction/
See: https://github.com/alanorth/hugo-theme-bootstrap4-blog/issues/120

assets/css/cookieconsent.min.css

@@ -0,0 +1,6 @@
+.cc-window{opacity:1;transition:opacity 1s ease}.cc-window.cc-invisible{opacity:0}.cc-animate.cc-revoke{transition:transform 1s ease}.cc-animate.cc-revoke.cc-top{transform:translateY(-2em)}.cc-animate.cc-revoke.cc-bottom{transform:translateY(2em)}.cc-animate.cc-revoke.cc-active.cc-bottom,.cc-animate.cc-revoke.cc-active.cc-top,.cc-revoke:hover{transform:translateY(0)}.cc-grower{max-height:0;overflow:hidden;transition:max-height 1s}
+.cc-link,.cc-revoke:hover{text-decoration:underline}.cc-revoke,.cc-window{position:fixed;overflow:hidden;box-sizing:border-box;font-family:Helvetica,Calibri,Arial,sans-serif;font-size:16px;line-height:1.5em;display:-ms-flexbox;display:flex;-ms-flex-wrap:nowrap;flex-wrap:nowrap;z-index:9999}.cc-window.cc-static{position:static}.cc-window.cc-floating{padding:2em;max-width:24em;-ms-flex-direction:column;flex-direction:column}.cc-window.cc-banner{padding:1em 1.8em;width:100%;-ms-flex-direction:row;flex-direction:row}.cc-revoke{padding:.5em}.cc-header{font-size:18px;font-weight:700}.cc-btn,.cc-close,.cc-link,.cc-revoke{cursor:pointer}.cc-link{opacity:.8;display:inline-block;padding:.2em}.cc-link:hover{opacity:1}.cc-link:active,.cc-link:visited{color:initial}.cc-btn{display:block;padding:.4em .8em;font-size:.9em;font-weight:700;border-width:2px;border-style:solid;text-align:center;white-space:nowrap}.cc-banner .cc-btn:last-child{min-width:140px}.cc-highlight .cc-btn:first-child{background-color:transparent;border-color:transparent}.cc-highlight .cc-btn:first-child:focus,.cc-highlight .cc-btn:first-child:hover{background-color:transparent;text-decoration:underline}.cc-close{display:block;position:absolute;top:.5em;right:.5em;font-size:1.6em;opacity:.9;line-height:.75}.cc-close:focus,.cc-close:hover{opacity:1}
+.cc-revoke.cc-top{top:0;left:3em;border-bottom-left-radius:.5em;border-bottom-right-radius:.5em}.cc-revoke.cc-bottom{bottom:0;left:3em;border-top-left-radius:.5em;border-top-right-radius:.5em}.cc-revoke.cc-left{left:3em;right:unset}.cc-revoke.cc-right{right:3em;left:unset}.cc-top{top:1em}.cc-left{left:1em}.cc-right{right:1em}.cc-bottom{bottom:1em}.cc-floating>.cc-link{margin-bottom:1em}.cc-floating .cc-message{display:block;margin-bottom:1em}.cc-window.cc-floating .cc-compliance{-ms-flex:1;flex:1}.cc-window.cc-banner{-ms-flex-align:center;align-items:center}.cc-banner.cc-top{left:0;right:0;top:0}.cc-banner.cc-bottom{left:0;right:0;bottom:0}.cc-banner .cc-message{-ms-flex:1;flex:1}.cc-compliance{display:-ms-flexbox;display:flex;-ms-flex-align:center;align-items:center;-ms-flex-line-pack:justify;align-content:space-between}.cc-compliance>.cc-btn{-ms-flex:1;flex:1}.cc-btn+.cc-btn{margin-left:.5em}
+@media print{.cc-revoke,.cc-window{display:none}}@media screen and (max-width:900px){.cc-btn{white-space:normal}}@media screen and (max-width:414px) and (orientation:portrait),screen and (max-width:736px) and (orientation:landscape){.cc-window.cc-top{top:0}.cc-window.cc-bottom{bottom:0}.cc-window.cc-banner,.cc-window.cc-left,.cc-window.cc-right{left:0;right:0}.cc-window.cc-banner{-ms-flex-direction:column;flex-direction:column}.cc-window.cc-banner .cc-compliance{-ms-flex:1;flex:1}.cc-window.cc-floating{max-width:none}.cc-window .cc-message{margin-bottom:1em}.cc-window.cc-banner{-ms-flex-align:unset;align-items:unset}}
+.cc-floating.cc-theme-classic{padding:1.2em;border-radius:5px}.cc-floating.cc-type-info.cc-theme-classic .cc-compliance{text-align:center;display:inline;-ms-flex:none;flex:none}.cc-theme-classic .cc-btn{border-radius:5px}.cc-theme-classic .cc-btn:last-child{min-width:140px}.cc-floating.cc-type-info.cc-theme-classic .cc-btn{display:inline-block}
+.cc-theme-edgeless.cc-window{padding:0}.cc-floating.cc-theme-edgeless .cc-message{margin:2em 2em 1.5em}.cc-banner.cc-theme-edgeless .cc-btn{margin:0;padding:.8em 1.8em;height:100%}.cc-banner.cc-theme-edgeless .cc-message{margin-left:1em}.cc-floating.cc-theme-edgeless .cc-btn+.cc-btn{margin-left:0}