Fix old blog post with broken images (#987)

* Fix old blog post with broken images

* remove broken author images

Author: jderochervlk

_blogposts/archive/2020-03-26-generalize-uncurry.mdx

@@ -53,19 +53,19 @@ message leaks the underlying encoding -- now all those limitations are gone!
 
 **Previously:**
 
-<img class="my-4" src="https://bucklescript.github.io/img/poly-error.png"/>
+<img src="/static/blog/archive/poly-error.png" className="my-4 mx-auto max-h-[500px]"/>
 
-<img src="https://bucklescript.github.io/img/label-error.png"/>
+<img src="/static/blog/archive/label-error.png" className="my-4 mx-auto max-h-[500px]"/>
 
-<img src="https://bucklescript.github.io/img/recursive-error.png"/>
+<img src="/static/blog/archive/recursive-error.png" className="my-4 mx-auto max-h-[500px]"/>
 
 The error messages above are cryptic and hard to understand. And the limitation of not supporting recursive functions make uncurried support pretty weak.
 
 Now those limitations are all gone, you can have polymorphic uncurried recursive functions and it support labels.
 
-<img src="https://bucklescript.github.io/img/uncurry-label.png"/>
+<img src="/static/blog/archive/uncurry-label.png" className="my-4 mx-auto max-h-[500px]"/>
 
-<img src="https://bucklescript.github.io/img/recursive.png"/>
+<img src="/static/blog/archive/recursive.png" className="my-4 mx-auto max-h-[500px]"/>
 
 The error message is  also enhanced significantly
 

public/static/blog/archive/label-error.png

@@ -132,8 +132,13 @@ module FeatureCard = {
     ~firstParagraph: string="",
     ~slug: string,
   ) => {
-    let authorImg = <img className="h-full w-full rounded-full" src=author.imgUrl />
-
+    let authorImg = switch author.imgUrl {
+    | "" => React.null
+    | imgUrl =>
+      <div className="inline-block w-4 h-4 mr-2">
+        <img className="h-full w-full rounded-full" src=imgUrl />
+      </div>
+    }
     <section
       className="flex sm:px-4 md:px-8 lg:px-0 flex-col justify-end lg:flex-row sm:items-center h-full">
       <div
@@ -166,7 +171,7 @@ module FeatureCard = {
           <h2 className="hl-1"> {React.string(title)} </h2>
           <div className="mb-6">
             <div className="flex items-center body-sm text-gray-40 mt-2 mb-5">
-              <div className="inline-block w-4 h-4 mr-2"> authorImg </div>
+              authorImg
               <div>
                 <a
                   className="hover:text-gray-60"

public/static/blog/archive/poly-error.png

@@ -13,21 +13,21 @@ let authors = [
     username: "hongbo",
     fullname: "Hongbo Zhang",
     role: "Compiler & Build System",
-    imgUrl: "https://pbs.twimg.com/profile_images/1369548222314598400/E2y46vrB_400x400.jpg",
+    imgUrl: "",
     social: X("bobzhang1988"),
   },
   {
     username: "chenglou",
     fullname: "Cheng Lou",
     role: "Syntax & Tools",
-    imgUrl: "https://pbs.twimg.com/profile_images/554199709909131265/Y5qUDaCB_400x400.jpeg",
+    imgUrl: "",
     social: X("_chenglou"),
   },
   {
     username: "maxim",
     fullname: "Maxim Valcke",
     role: "Syntax Lead",
-    imgUrl: "https://pbs.twimg.com/profile_images/970271048812974080/Xrr8Ob6J_400x400.jpg",
+    imgUrl: "",
     social: X("_binary_search"),
   },
   {

public/static/blog/archive/recursive-error.png

@@ -24,6 +24,7 @@ export default {
   content: [
     "./src/**/*.{mjs,js,res}",
     "./pages/**/*.{mjs,js,mdx}",
+    "./_blogposts/**/*.mdx"
   ],
   theme: {
     extend: {