Add doc and fixed icons, remove prism

src/assets/demo/styles/documentation.scss

@@ -1,56 +0,0 @@
-pre[class*='language-'] {
-    background-color: var(--surface-ground) !important;
-    border-radius: var(--border-radius);
-
-    &:before,
-    &:after {
-        display: none !important;
-    }
-
-    code {
-        border-left: 0px solid var(--surface-border) !important;
-        box-shadow: none !important;
-        background: var(--surface-ground) !important;
-        color: var(--text-color);
-        font-size: 14px;
-    }
-
-    .token {
-        &.tag,
-        &.keyword {
-            color: #2196f3 !important;
-        }
-
-        &.attr-name,
-        &.attr-string {
-            color: #2196f3 !important;
-        }
-
-        &.attr-value {
-            color: #4caf50 !important;
-        }
-
-        &.punctuation {
-            color: var(--text-color);
-        }
-
-        &.operator,
-        &.string {
-            background: transparent;
-        }
-    }
-}
-
-i:not([class~='pi']) {
-    /* background-color: transparent; */
-    color: #2196f3;
-    font-family: Monaco, courier, monospace;
-    font-style: normal;
-    font-size: 12px;
-    font-weight: 500;
-    padding: 0 4px;
-    letter-spacing: 0.5px;
-    font-weight: 600;
-    margin: 0 2px;
-    display: inline-flex;
-}