us: Simplify by using Unicode directly

data/keyboards/us.yaml

@@ -20,22 +20,22 @@ views:
         - "q w e r t y u i o p"
         - "a s d f g h j k l"
         - "Shift_L   z x c v b n m  BackSpace"
-        - "show_numbers preferences         space        period    Return"
+        - "show_numbers preferences         space        .    Return"
     upper:
         - "Q W E R T Y U I O P"
         - "A S D F G H J K L"
         - "Shift_L   Z X C V B N M  BackSpace"
-        - "show_numbers preferences         space        period    Return"
+        - "show_numbers preferences         space        .    Return"
     numbers:
         - "1 2 3 4 5 6 7 8 9 0"
-        - "at numbersign dollar percent ampersand minus underscore plus parenleft parenright"
+        - "@ # $ % & - _ + ( )"
-        - "show_symbols   comma quotedbl quoteright colon semicolon exclam question  BackSpace"
+        - "show_symbols   , \" ' colon ; ! ?  BackSpace"
-        - "show_letters preferences         space        period    Return"
+        - "show_letters preferences         space        .    Return"
     symbols:
-        - "asciitilde quoteleft bar U00B7 squareroot Greek_pi Greek_tau division multiply paragraph"
+        - "~ ` | · √ π τ ÷ × ¶"
-        - "copyright U00AE U00A3 EuroSign U00A5 asciicircum degree asterisk braceleft braceright"
+        - "© ® £ € ¥ ^ ° * { }"
-        - "show_numbers   backslash slash less greater equal bracketleft bracketright  BackSpace"
+        - "show_numbers   \ / < > = [ ]  BackSpace"
-        - "show_letters preferences         space        period    Return"
+        - "show_letters preferences         space        .    Return"
 
 buttons:
     Shift_L:
@@ -67,101 +67,15 @@ buttons:
             set_view: "symbols"
         outline: "altline"
         label: "+/="
-    period:
+    ".":
         outline: altline
-        label: "."
     space:
         outline: spaceline
         label: " "
     Return:
         outline: outline7
         icon: "key-enter"
-    asterisk:
-        label: "*"
-    asciitilde:
-        label: "~"
-    quoteleft:
-        label: "`"
-    bar:
-        label: "|"
-    U00B7:
-        label: "·"
-    squareroot:
-        label: "√"
-    Greek_pi:
-        label: "π"
-    division:
-        label: "÷"
-    multiply:
-        label: "×"
-    paragraph:
-        label: "¶"
-    Greek_tau:
-        label: "τ"
-    copyright:
-        label: "©"
-    numbersign:
-        label: "#"
-    U00AE:
-        label: "®"
-    at:
-        label: "@"
-    dollar:
-        label: "$"
-    U00A3:
-        label: "£"
-    percent:
-        label: "%"
-    EuroSign:
-        label: "€"
-    ampersand:
-        label: "&"
-    U00A5:
-        label: "¥"
-    minus:
-        label: "-"
-    asciicircum:
-        label: "^"
-    underscore:
-        label: "_"
-    degree:
-        label: "°"
-    plus:
-        label: "+"
-    equal:
-        label: "="
-    parenleft:
-        label: "("
-    parenright:
-        label: ")"
-    braceleft:
-        label: "{"
-    braceright:
-        label: "}"
-    comma:
-        label: ","
-    backslash:
-        label: "\\"
-    slash:
-        label: "/"
-    quotedbl:
-        label: "\""
-    quoteright:
-        label: "'"
-    less:
-        label: "<"
-    greater:
-        label: ">"
     colon:
         label: ":"
-    semicolon:
+    "\"":
-        label: ";"
+        keysym: "quotedbl"
-    exclam:
-        label: "!"
-    question:
-        label: "?"
-    bracketleft:
-        label: "["
-    bracketright:
-        label: "]"
-