treewide: remove tailing whitespaces (#228)

modules/gnome/shell_colors.patch

@@ -15,7 +15,7 @@ index 5b117ea71..67e7ce756 100644
 --- a/data/theme/gnome-shell-sass/_common.scss
 +++ b/data/theme/gnome-shell-sass/_common.scss
 @@ -168,9 +168,9 @@ stage {
- 
+
  // tooltip
  %tooltip {
 -  background-color: transparentize(black, 0.1);
@@ -24,7 +24,7 @@ index 5b117ea71..67e7ce756 100644
 +  background-color: transparentize($bg_color, 0.1);
 +  border: 1px solid transparentize($base_color, 0.9);
 +  color: $fg_color;
- 
+
    border-radius: 99px;
    padding: $base_padding $base_padding * 2;
 diff --git a/data/theme/gnome-shell-sass/_drawing.scss b/data/theme/gnome-shell-sass/_drawing.scss
@@ -34,10 +34,10 @@ index 404c4dc81..f006b9347 100644
 @@ -143,7 +143,7 @@
  //
  // since buttons are all flat an borderless now the mixin is simpler
- 
+
 -@mixin button($t, $tc:$fg_color, $c:$bg_color, $flat: false, $osd: false) {
 +@mixin button($t, $tc:$fg_color, $c:$base_color, $flat: false, $osd: false) {
- 
+
    $button_bg_color: mix($tc, $c, $button_mix_factor);
    transition-duration: 100ms;
 diff --git a/data/theme/gnome-shell-sass/widgets/_calendar.scss b/data/theme/gnome-shell-sass/widgets/_calendar.scss
@@ -51,7 +51,7 @@ index fc054da38..8e31741c1 100644
 +
 +  color: $fg_color !important;
  }
- 
+
  /* Calendar */
 @@ -220,7 +222,7 @@
    .weather-forecast-time {
@@ -69,17 +69,17 @@ index 6e7b3be14..3f37fdef5 100644
 @@ -1,11 +1,11 @@
  /* Top Bar */
  // a.k.a. the panel
- 
+
 -$privacy_indicator_color: $orange_3;
 +$privacy_indicator_color: $warning_color;
- 
+
 -$panel_bg_color: if($variant == 'light', $light_3, $dark_5);
 -$panel_fg_color: if($variant == 'light', $fg_color, darken($fg_color, 5%));
 -$panel_border_color: if($variant == 'light', darken($panel_bg_color, 2%), $panel_bg_color);
 +$panel_bg_color: $base_color;
 +$panel_fg_color: $fg_color;
 +$panel_border_color: transparentize($panel_bg_color, 0.9);
- 
+
  $panel_system_fg_color: $system_fg_color; // always light for lockscreen, overview and other transparent panels
  $panel_height: 2.2em;
 diff --git a/data/theme/gnome-shell-sass/widgets/_quick-settings.scss b/data/theme/gnome-shell-sass/widgets/_quick-settings.scss
@@ -101,5 +101,5 @@ index 723afe7db..b23062294 100644
 +      background-color: $bg_color;
 +      color: $fg_color;
      }
- 
+
      & .title {