Fix text color in danger-alt buttons

customize.dist/src/less2/include/colortheme-dark.less

@@ -142,6 +142,7 @@
 @cp_buttons-default-color: @cryptpad_text_col;
 @cp_buttons-default-border: @cryptpad_text_col;
 @cp_buttons-red: #E55236;
+@cp_buttons-red-text: @cryptpad_color_light_red;
 @cp_buttons-red-color: #FFF;
 @cp_buttons-red-border: transparent;
 @cp_buttons-primary: @cryptpad_color_brand;
@@ -159,7 +160,7 @@
 @cp_sidebar-right-bg: @cryptpad_color_grey_900;
 @cp_sidebar-right-fg: @cryptpad_text_col; // XXX was black
 @cp_sidebar-left-active: @cp_sidebar-right-bg;
-@cp_sidebar-hint: @cryptpad_color_hint_grey;
+@cp_sidebar-hint: fade(@cryptpad_text_col, 80%);
 
 // Drive
 @cp_drive-bg: @cp_sidebar-right-bg;

customize.dist/src/less2/include/colortheme.less

@@ -142,6 +142,7 @@
 @cp_buttons-default-color: @cryptpad_text_col;
 @cp_buttons-default-border: @cryptpad_text_col;
 @cp_buttons-red: #E55236;
+@cp_buttons-red-text: @cp_buttons-red;
 @cp_buttons-red-color: #FFF;
 @cp_buttons-red-border: transparent;
 @cp_buttons-primary: @cryptpad_color_brand;

customize.dist/src/less2/include/forms.less

@@ -142,7 +142,7 @@
 
         &.danger-alt, &.btn-danger-alt, &.btn-danger-outline {
             border-color: @cp_buttons-red;
-            color: @cp_buttons-red;
+            color: @cp_buttons-red-text;
             &:hover, &:not(:disabled):active, &:focus {
                 border-color: @cp_buttons-red;
                 color: @cp_buttons-red-color;