Improve inline keyboard compatibility (#1959)

* Improve compatibility of the inline keyboard with some games

* Send an empty first text to avoid crashing some games

* Implement SetCustomizedDictionaries and fix SetCustomizeDic

* Expand Bg and Fg –abbreviations in the swkbd applet

* Fix variable names and add comments to software keyboard

Ryujinx.HLE/HOS/Applets/SoftwareKeyboard/InlineKeyboardRequest.cs

@@ -1,18 +1,48 @@
 namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
 {
     /// <summary>
-    /// Possible requests to the keyboard when running in inline mode.
+    /// Possible requests to the software keyboard when running in inline mode.
     /// </summary>
     enum InlineKeyboardRequest : uint
     {
-        Unknown0                    = 0x0,
-        Finalize                    = 0x4,
-        SetUserWordInfo             = 0x6,
-        SetCustomizeDic             = 0x7,
-        Calc                        = 0xA,
-        SetCustomizedDictionaries   = 0xB,
+        /// <summary>
+        /// Finalize the keyboard applet.
+        /// </summary>
+        Finalize = 0x4,
+
+        /// <summary>
+        /// Set user words for text prediction.
+        /// </summary>
+        SetUserWordInfo = 0x6,
+
+        /// <summary>
+        /// Sets the CustomizeDic data. Can't be used if CustomizedDictionaries is already set.
+        /// </summary>
+        SetCustomizeDic = 0x7,
+
+        /// <summary>
+        /// Configure the keyboard applet and put it in a state where it is processing input.
+        /// </summary>
+        Calc = 0xA,
+
+        /// <summary>
+        /// Set custom dictionaries for text prediction. Can't be used if SetCustomizeDic is already set.
+        /// </summary>
+        SetCustomizedDictionaries = 0xB,
+
+        /// <summary>
+        /// Release custom dictionaries data.
+        /// </summary>
         UnsetCustomizedDictionaries = 0xC,
-        UseChangedStringV2          = 0xD,
-        UseMovedCursorV2            = 0xE
+
+        /// <summary>
+        /// [8.0.0+] Request the keyboard applet to use the ChangedStringV2 response when notifying changes in text data.
+        /// </summary>
+        UseChangedStringV2 = 0xD,
+
+        /// <summary>
+        /// [8.0.0+] Request the keyboard applet to use the MovedCursorV2 response when notifying changes in cursor position.
+        /// </summary>
+        UseMovedCursorV2 = 0xE
     }
 }