Fix spelling mistakes

i3-input/keysym.map

@@ -1,7 +1,7 @@
 # This list can be used to convert X11 Keysyms to Unicode 2.1 character. 
 # The list is not checked for correctness by Unicode officials.  Use it 
 # at your own risk and the creator is not responsable for any damage that 
-# occured due to using this list. 
+# occurred due to using this list. 
 # 
 # The list is created by looking at the Keysym names and the Unicode data 
 # file.  Other mapping tables were used as a reference where needed. 

i3-input/main.c

@@ -80,7 +80,7 @@ void debuglog(char *fmt, ...) {
 }
 
 /*
- * Restores the X11 input focus to whereever it was before.
+ * Restores the X11 input focus to wherever it was before.
  * This is necessary because i3-input’s window has override_redirect=1
  * (→ unmanaged by the window manager) and thus i3-input changes focus itself.
  * This function is called on exit().