Split and re-ordered SCSS files for easier overrides of defaults (#4)

* Split SCSS for easier changes
* Re-ordered SCSS files for easier overrides of defaults
* Fixed padding classes with auto value
* Added theme """stub"""

scss/nibblepoker.scss

@@ -10,70 +10,91 @@
  * -----------------------------------------------------------------------------
  */
 
+/* Externals */
+@import 'externals/reset';  // Doesn't reset checkboxes !
+
+
 /* Config */
 @import 'config';
 
-/* Externals */
-@import 'external/reset';  // Doesn't reset checkboxes !
-
 /* Variables */
 @import 'variables';
 
-/* Site */
 
-/* Site > Layouts */
-@import 'site/layouts/commons';  // Sets up the page's default sizing rules
-@import 'site/layouts/generic';  // Theme used for websites with a toggleable sidebar (Similar to WinUI apps)
+/* Layouts */
+@import 'layouts/layout_commons';  // Sets up the page's default sizing rules
+@import 'layouts/layout_generic';  // Theme used for websites with a toggleable sidebar (Similar to WinUI apps)
 
-/* Site > Styles */
-@import 'site/base';  // Needs a rework, Defines some basic common broad styling/coloring rules
-@import 'site/text';  // Has some hardcoded width for font-awesome icons in sidebar and headings
 
-/* Site > Elements */
-@import 'site/hr';         // Custom horizontal rulers
-@import 'site/scrollbar';  // Personalizes the scrollbars (Horizontal is still unfinished !)
-@import 'site/input';      // Has ugly fix for download buttons
-@import 'site/table';      // Uses copied paddings for cells & ugly rounding fix
-@import 'site/code';       // Uses forced borders, roundings and paddings
-@import 'site/video';
+/* Defaults */
+/* Defaults > Text */
+@import 'defaults/text/defaults-text-basics';
+@import 'defaults/text/defaults-text-links';
+@import 'defaults/text/defaults-text-weights';
 
-/* Site > Misc */
-@import 'site/borders';  // Applies the colors mostly, the size are in the elements !
-@import 'site/backgrounds';
+@import 'defaults/defaults-backgrounds';  // Defines some basic styling/coloring rules
+@import 'defaults/defaults-fonts';
+@import 'defaults/defaults-images';
+@import 'defaults/defaults-inputs';  // Has ugly fix for download buttons
+@import 'defaults/defaults-code';    // Uses forced borders, roundings and paddings
+@import 'defaults/defaults-tables';  // Uses copied paddings for cells & ugly rounding fix
 
-/* Site > Fixes */
-@import 'site/mobile';  // Has !important overrides for obvious reasons
-
-/* Site > Unsorted */
-@import 'site/image';
-@import 'site/wedge';
-@import 'site/content';  // Uses fixed sizes and floats
-@import 'site/modal';
 
 /* Core */
-@import 'core/border'; // Border rules (.border, .bt-0, ...)
-@import 'core/float';  // Floating rules (.f-right, ...)
-@import 'core/sizing'; // Rules for setting elements size (.w-full, ...)
-@import 'core/flex';   // /!\ Needs an overhaul !!!
-@import 'core/grid';   // /!\ Needs an overhaul !!!
-@import 'core/text';   // Text-related rules (.t-bold, t-ucase, t-size-14, ...)
-//@import 'core/containers';  // Cannot remember why it was used, if ever
-@import 'core/display';   // /!\ Needs improvement !!!
-@import 'core/position';   // /!\ Needs improvement !!!
-@import 'core/overflow';   // Defines generic overflow rules (.o-hidden, .ox-scroll, ...)
-@import 'core/lists';
-@import 'core/table';
-@import 'core/cursor';
+@import 'core/core-grids';  // /!\ Needs an overhaul, especially for mobile !!!
 
-/* Core > Rounding */
-@import 'core/rounding/global';
-@import 'core/rounding/sided';
-@import 'core/rounding/corner';
+/* Elements */
+@import 'elements/elements-backgrounds';
+@import 'elements/elements-lists';
+@import 'elements/elements-wedge';  // Wedges shown in code blocks and other notifications.
+@import 'elements/elements-hr';  // Custom horizontal rulers
+@import 'elements/elements-video';
+@import 'elements/elements-scrollbar';  // /!\ Horizontal unfinished, and thy look bad in some contexts /!\
 
-/* Core > Spacing */
-@import 'core/spacing/global';
-@import 'core/spacing/axis';
-@import 'core/spacing/sided';
+/* Inputs */
+@import 'inputs/inputs-langs';
+@import 'inputs/inputs-textarea';
+
+/* Tables */
+@import 'tables/tables-modifiers';
+
+/* Borders */
+@import 'borders/border-targeting';  // Border rules (.border, .bt-0, ...)
+@import 'borders/border-styles';     // Types of borders
+@import 'borders/border-colors';     // Default colors for some elements (Overrides global color in border-targeting)
+
+/* Text */
+@import 'text/text-sizes';
+@import 'text/text-weights';
+@import 'text/text-alignment';
+@import 'text/text-styling';
+@import 'text/text-misc';
+
+/* Spacing */
+@import 'spacing/spacing_global';
+@import 'spacing/spacing_axis';
+@import 'spacing/spacing_sided';
+
+/* Rounding */
+@import 'rounding/rounding_global';
+@import 'rounding/rounding_sided';
+@import 'rounding/rounding_corner';
+
+/* Overrides */
+@import 'utils/utils-float';     // Floating rules (.f-right, ...)
+@import 'utils/utils-cursor';
+@import 'utils/utils-text';
+@import 'utils/utils-display';   // /!\ Needs more classes !
+@import 'utils/utils-overflow';  // Defines generic overflow rules (.o-hidden, .ox-scroll, ...)
+@import 'utils/utils-flex';      // /!\ Needs an overhaul !!!
+@import 'utils/utils-sizing';    // Rules for setting elements size (.w-full, ...)
+@import 'utils/utils-position';
+@import 'utils/utils-mobile';
 
 /* Extras */
-@import 'site/splide';
+@import 'extra/extra-splide';  // Picture gallery
+@import 'extra/extra-np-content';  // Uses fixed sizes and floats
+
+/* Fixes */
+@import 'fixes/fixes-mobile';  // Hotfixes for mobile-related issues
+@import 'fixes/fixes-buttons';  // Ugly fix for download buttons