fix: reset to original state when restarting input in the same view

Clear any composing input or view when input is restarted in the same
text view, thus ensure a fresh input UI.

Fixes #1134

Author: goofyz

app/src/main/java/com/osfans/trime/ime/core/Trime.java

@@ -1246,7 +1246,7 @@ private boolean performEnter(int keyCode) { // 回車
   }
 
   /** 模擬PC鍵盤中Esc鍵的功能：清除輸入的編碼和候選項 */
-  private void performEscape() {
+  public void performEscape() {
     if (isComposing()) textInputManager.onKey(KeyEvent.KEYCODE_ESCAPE, 0);
   }
 

app/src/main/java/com/osfans/trime/ime/text/TextInputManager.kt

@@ -189,6 +189,9 @@ class TextInputManager private constructor() :
         ) {
             super.onStartInputView(instance, restarting)
             Trime.getService().selectLiquidKeyboard(-1)
+            if (restarting) {
+                trime.performEscape()
+            }
             isComposable = false
             var tempAsciiMode = if (shouldResetAsciiMode) false else null
             val keyboardType =