Develop 404 (hackforla#1972)

* Standardized the page card classes in the About page

* Develop 404 page

* Made edits to margins because of new footer sizing

* Fixes mobile and tablet view

* Fixes href link for the Join Us page

* Fixes spacing for first message on 404 page

_data/internal/credits/404.yml

@@ -0,0 +1,12 @@
+---
+title: Error
+title-link: https://www.freepik.com/
+content: Image
+used-in: Error page
+artist: stories
+provider: Freepik
+provider-link: https://www.freepik.com/
+image-url: /assets/images/404.svg
+alt: '404'
+type: icon
+---

_sass/components/_404.scss

@@ -0,0 +1,107 @@
+.grid-container--404 {
+  display: flex;
+  flex-flow: row;
+  justify-content: center;
+  align-items: center; 
+  padding: 120px;
+  margin: 100px 100px;
+
+  @media #{$bp-below-desktop} {
+    margin: 70px 30px;
+    padding-left: 0;
+    padding-right: 0;
+    padding-top: 130px;
+    padding-bottom: 130px;
+  }
+
+  @media #{$bp-below-tablet} {
+    display: flex;
+    flex-direction: column;
+    justify-content: center;
+    align-items: center;
+    margin: 0px 20px;
+    padding-top: 80px;
+    padding-bottom: 20px;
+  }
+
+  ul, li {
+    padding: 0;
+    list-style-type: none;
+    font-weight: bold;
+    font-size: 16px;
+    line-height: 2.5;
+    color: #FA114F;
+  }
+
+  a { 
+    text-decoration: none; 
+  }
+}
+
+.col-left {
+  max-width: 500px;
+  width: 100%;
+
+  @media #{$bp-below-tablet} {
+    display: flex;
+    flex-direction: column;
+    margin: auto;
+  }
+}
+
+.img-404-desktop {
+  width: 530px;
+  height: 355px;
+
+  @media #{$bp-below-desktop} {
+    visibility: hidden;
+    width: 0;
+    height: 0;
+  }
+}
+
+.img-404-mobile {
+  visibility: hidden;
+  width: 0;
+  height: 0;
+
+  @media #{$bp-below-desktop} {
+    visibility: visible;
+    width: 276px;
+    height: 185px;
+    align-self: center;
+    margin: 30px 0px;
+  }
+}
+
+.header-message-404 {
+  font-weight: bold;
+  font-size: 76px;
+  font-family: "Roboto", sans-serif;
+  font-style: normal;
+  color: #333333;
+  margin-bottom: 0;
+
+  @media #{$bp-below-desktop} {
+    font-size: 39px;
+    line-height: 1.8;
+  }
+}
+
+.main-message-404 {
+  font-weight: bold;
+  font-size: 24px;
+  color: #000000;
+  opacity: 0.5;
+  margin-bottom: 80px;  
+
+  @media #{$bp-below-desktop} {
+    margin-bottom: 0px;
+  }
+}
+
+.link-message-404 {
+  font-weight: bold;
+  font-size: 16px;
+  color: #333333;
+}

_sass/main.scss

@@ -35,6 +35,7 @@
 // /**
 //  * Components
 //  */
+@import 'components/404';
 @import 'components/home';
 @import 'components/about';
 @import 'components/communities-of-practice';