CB: Revert upstream colour changes to our Design

Replaces the changed colours from Gitea 1.14 with those in
Codeberg/Design and their derivates.

Author: fnetX

web_src/less/_base.less

@@ -6,30 +6,30 @@
   /* other variables */
   --border-radius: .28571429rem;
   --opacity-disabled: .55;
-  --color-primary: #4183c4;
-  --color-primary-dark-1: #3876b3;
-  --color-primary-dark-2: #31699f;
-  --color-primary-dark-3: #2b5c8b;
-  --color-primary-dark-4: #254f77;
-  --color-primary-dark-5: #193450;
-  --color-primary-dark-6: #0c1a28;
-  --color-primary-dark-7: #04080c;
-  --color-primary-light-1: #548fca;
-  --color-primary-light-2: #679cd0;
-  --color-primary-light-3: #7aa8d6;
-  --color-primary-light-4: #8db5dc;
-  --color-primary-light-5: #b3cde7;
-  --color-primary-light-6: #d9e6f3;
-  --color-primary-light-7: #f4f8fb;
-  --color-primary-alpha-10: #4183c419;
-  --color-primary-alpha-20: #4183c433;
-  --color-primary-alpha-30: #4183c44b;
-  --color-primary-alpha-40: #4183c466;
-  --color-primary-alpha-50: #4183c480;
-  --color-primary-alpha-60: #4183c499;
-  --color-primary-alpha-70: #4183c4b3;
-  --color-primary-alpha-80: #4183c4cc;
-  --color-primary-alpha-90: #4183c4e1;
+  --color-primary: #2185d0;
+  --color-primary-dark-1: #1D72B3;
+  --color-primary-dark-2: #19659F;
+  --color-primary-dark-3: #16588B;
+  --color-primary-dark-4: #134B77;
+  --color-primary-dark-5: #0D3350;
+  --color-primary-dark-6: #061A28;
+  --color-primary-dark-7: #02080C;
+  --color-primary-light-1: #44ADFF;
+  --color-primary-light-2: #67A3D0;
+  --color-primary-light-3: #7AAED6;
+  --color-primary-light-4: #8DBADC;
+  --color-primary-light-5: #B3D0E7;
+  --color-primary-light-6: #D9E8F3;
+  --color-primary-light-7: #F4F8FB;
+  --color-primary-alpha-10: #2185d019;
+  --color-primary-alpha-20: #2185d033;
+  --color-primary-alpha-30: #2185d04b;
+  --color-primary-alpha-40: #2185d066;
+  --color-primary-alpha-50: #2185d080;
+  --color-primary-alpha-60: #2185d099;
+  --color-primary-alpha-70: #2185d0b3;
+  --color-primary-alpha-80: #2185d0cc;
+  --color-primary-alpha-90: #2185d0e1;
   --color-secondary: #dedede;
   --color-secondary-dark-1: #cecece;
   --color-secondary-dark-2: #bfbfbf;