为桌面端窗口标题栏添加应用图标 (#7032)

* :art: 为桌面端窗口标题栏添加应用图标

* :art: 为桌面端窗口标题栏添加应用图标

* :art: 使用 `getElementById` 替代 `querySelector`

app/src/assets/scss/_reset.scss

@@ -55,7 +55,7 @@ body {
     -webkit-font-smoothing: auto;
 
     .toolbar {
-      padding: 0 0 0 5px;
+      padding: 0;
     }
 
     .fullscreen {

app/src/assets/scss/base.scss

@@ -182,6 +182,13 @@ progressLoading: 400
     padding-left: 0;
   }
 
+  #windowAppIcon {
+    -webkit-app-region: drag;
+    width: 42px;
+    margin-left: 1px;
+    justify-content: center;
+  }
+
   #windowControls {
     top: 0;
     z-index: 502;

app/src/util/onGetConfig.ts

@@ -179,7 +179,8 @@ export const onGetConfig = (isStart: boolean) => {
 };
 
 const initBar = () => {
-    document.querySelector(".toolbar").innerHTML = `
+    const toolbar = document.getElementById("toolbar");
+    toolbar.innerHTML = `
 <div id="barWorkspace" class="toolbar__item">
     <span class="toolbar__text">${getWorkspaceName()}</span>
     <svg class="toolbar__svg"><use xlink:href="#iconDown"></use></svg>
@@ -208,7 +209,7 @@ const initBar = () => {
     <svg><use xlink:href="#icon${window.siyuan.config.appearance.modeOS ? "Mode" : (window.siyuan.config.appearance.mode === 0 ? "Light" : "Dark")}"></use></svg>
 </div>
 <div class="fn__flex" id="windowControls"></div>`;
-    document.querySelector(".toolbar").addEventListener("click", (event: MouseEvent) => {
+    toolbar.addEventListener("click", (event: MouseEvent) => {
         let target = event.target as HTMLElement;
         while (!target.classList.contains("toolbar")) {
             if (target.id === "barBack") {
@@ -463,8 +464,18 @@ const initWindow = () => {
         }
         return;
     }
-    const controlsElement = document.querySelector("#windowControls");
     document.body.classList.add("body--win32");
+
+    //添加应用图标
+    const toolbar = document.getElementById("toolbar");
+    toolbar.insertAdjacentHTML("afterbegin", `<div class="toolbar__item" id="windowAppIcon">
+    <svg>
+        <use xlink:href="#iconSiYuan"></use>
+    </svg>
+</div>`);
+
+    //添加窗口控件
+    const controlsElement = document.getElementById("windowControls");
     controlsElement.innerHTML = `<div class="toolbar__item b3-tooltips b3-tooltips__sw" aria-label="${window.siyuan.languages.min}" id="minWindow">
     <svg>
         <use xlink:href="#iconMin"></use>