feat(client/code-note): add support for batch files

libraries/codemirror/batch.js

@@ -0,0 +1,51 @@
+// Source: https://github.com/deathau/cm-editor-syntax-highlight-obsidian/issues/27#issuecomment-1340586596
+(() => {
+    var varsAndArgsRegex = /(%[0-9]|%~\S+|%\S+%)/;
+
+    CodeMirror.defineSimpleMode("batch", {
+        start: [
+          {	//comment
+            regex: /(rem|::)(?:\s.*|$)/i,
+            token: "comment",
+            sol: true
+          },
+          {	//echo
+            regex: /(@echo|echo)/i,
+            token: "builtin",
+            sol: true,
+            next: "echo"
+          },
+          {	//commands
+            regex: /(?:\s|^)(assoc|aux|break|call|cd|chcp|chdir|choice|cls|cmdextversion|color|com1|com2|com3|com4|com|con|copy|country|ctty|date|defined|del|dir|do|dpath|else|endlocal|erase|errorlevel|exist|exit|for|ftype|goto|if|in|loadfix|loadhigh|lpt|lpt1|lpt2|lpt3|lpt4|md|mkdir|move|not|nul|path|pause|popd|prn|prompt|pushd|rd|rename|ren|rmdir|setlocal|set|shift|start|time|title|type|verify|ver|vol)(?:\s|$)/i,
+            token: "builtin"
+          },
+          {	//variables and arguments
+            regex: varsAndArgsRegex,
+            token: "variable-2"
+          },
+          {	//label
+            regex: /\s*:.*/,
+            token: "string",
+            sol: true
+          }
+        ],
+        echo: [
+          {	//highlight variables and arguments in echo command
+            regex: varsAndArgsRegex,
+            token: "variable-2"
+          },
+          {	//go back to start state at end of line
+            regex: /.$/,
+            next: "start"
+          }
+        ]
+    });
+
+    CodeMirror.defineMIME("application/x-bat", "batch");
+    CodeMirror.modeInfo.push({
+        ext: [ "bat", "cmd" ],
+        mime: "application/x-bat",
+        mode: "batch",
+        name: "Batch file"
+    });
+})();