2 new icons: file-symlink, refresh-alert

Fixed icons: `refresh`, `shield-lock`, `square-dot`

src/_icons/file-symlink.svg

@@ -0,0 +1,9 @@
+---
+category: Document
+---
+<svg>
+  <path d="M4 21v-4a3 3 0 0 1 3 -3h5" />
+  <path d="M9 17l3-3-3-3" />
+  <path d="M14 3v4a1 1 0 0 0 1 1h4" />
+  <path d="M5 11v-6a2 2 0 0 1 2 -2h7l5 5v11a2 2 0 0 1 -2 2h-9.5" />
+</svg>

src/_icons/refresh-alert.svg

@@ -0,0 +1,10 @@
+---
+tags: [synchronization, reload, restart, spinner, loader, ajax, update, arrows]
+version: 1.0
+---
+<svg>
+  <path d="M20 11a8.1 8.1 0 0 0 -15.5 -2m-.5 -4v4h4" />
+  <path d="M4 13a8.1 8.1 0 0 0 15.5 2m.5 4v-4h-4" />
+  <line x1="12" y1="9" x2="12" y2="12" />
+  <line x1="12" y1="15" x2="12.01" y2="15" />
+</svg>

src/_icons/refresh.svg

@@ -3,6 +3,6 @@ tags: [synchronization, reload, restart, spinner, loader, ajax, update, arrows]
 version: 1.0
 ---
 <svg>
-  <path d="M20 11a8.1 8.1 0 0 0 -15.5 -2m-.5 -5v5h5" />
-  <path d="M4 13a8.1 8.1 0 0 0 15.5 2m.5 5v-5h-5" />
+  <path d="M20 11a8.1 8.1 0 0 0 -15.5 -2m-.5 -4v4h4" />
+  <path d="M4 13a8.1 8.1 0 0 0 15.5 2m.5 4v-4h-4" />
 </svg>

src/_icons/shield-lock.svg

@@ -2,6 +2,6 @@
 ---
 <svg>
   <path d="M12 3a12 12 0 0 0 8.5 3a12 12 0 0 1 -8.5 15a12 12 0 0 1 -8.5 -15a12 12 0 0 0 8.5 -3" />
-  <circle cx="12" cy="11" r="1"></circle>
-  <polyline points="12 12 12 14.5"></polyline>
+  <circle cx="12" cy="11" r="1" />
+  <line x1="12" y1="12" x2="12" y2="14.5" />
 </svg>

src/_icons/square-dot.svg

@@ -2,6 +2,5 @@
 ---
 <svg>
   <rect x="4" y="4" width="16" height="16" rx="2" />
-  <circle cx="12" cy="12" r="1"></circle>
-
+  <circle cx="12" cy="12" r="1" />
 </svg>