Fixed fonts URL for subdirectory installs

fixes TryGhost/Product#4194

Author: minimaluminium

assets/built/screen.css

@@ -88,7 +88,7 @@ production stylesheet in assets/built/screen.css
     font-style: normal;
     font-weight: 100 900;
     font-display: swap;
-    src: url(/assets/fonts/inter-roman.woff2) format("woff2");
+    src: url(../fonts/inter-roman.woff2) format("woff2");
     unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
 }
 
@@ -97,7 +97,7 @@ production stylesheet in assets/built/screen.css
     font-style: normal;
     font-weight: 400 800;
     font-display: swap;
-    src: url(/assets/fonts/eb-garamond-roman.woff2) format("woff2");
+    src: url(../fonts/eb-garamond-roman.woff2) format("woff2");
     unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
 }
 
@@ -106,7 +106,7 @@ production stylesheet in assets/built/screen.css
     font-style: italic;
     font-weight: 400 800;
     font-display: swap;
-    src: url(/assets/fonts/eb-garamond-italic.woff2) format("woff2");
+    src: url(../fonts/eb-garamond-italic.woff2) format("woff2");
     unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
 }
 
@@ -115,7 +115,7 @@ production stylesheet in assets/built/screen.css
     font-style: normal;
     font-weight: 100 800;
     font-display: swap;
-    src: url(/assets/fonts/jetbrains-mono-roman.woff2) format("woff2");
+    src: url(../fonts/jetbrains-mono-roman.woff2) format("woff2");
     unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
 }
 
@@ -124,7 +124,7 @@ production stylesheet in assets/built/screen.css
     font-style: italic;
     font-weight: 100 800;
     font-display: swap;
-    src: url(/assets/fonts/jetbrains-mono-italic.woff2) format("woff2");
+    src: url(../fonts/jetbrains-mono-italic.woff2) format("woff2");
     unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
 }