refactor: better modularise arturm/configs/qutebrowser

There are other changes too, such as some tiny refactors to make some things a
small bit more readable. For example: I added a variable in
`cityseventeen/apps.nix` to make environment variables a small bit easier to
read. It is pretty much the same case in `cityseventeen/themes.nix` except I
used map to get each attribute set with package instead of mapAttrs.

There are also some minor tweaks here and there but it isn't worth talking
about.

hosts/cityseventeen/users/arturm/configs/qutebrowser/config.py

@@ -1,37 +1,30 @@
-from theme import load_theme
+from colours.themes import load_colours, Palettes
+from colours.darkmode import darkmode_on
 
-config.load_autoconfig()
 
-theme = {
-    "base00": "#191724",
-    "base01": "#1f1d2e",
-    "base02": "#26233a",
-    "base03": "#6e6a86",
-    "base04": "#908caa",
-    "base05": "#e0def4",
-    "base06": "#e0def4",
-    "base07": "#524f67",
-    "base08": "#eb6f92",
-    "base09": "#f6c177",
-    "base0A": "#ebbcba",
-    "base0B": "#31748f",
-    "base0C": "#9ccfd8",
-    "base0D": "#c4a7e7",
-    "base0E": "#f6c177",
-    "base0F": "#524f67",
-}
+def main():
+    # leave this alone!
+    config.load_autoconfig()
 
-load_theme(c, theme)
+    # rose-pine
+    load_colours(c, Palettes.rose_pine)
 
-c.colors.webpage.preferred_color_scheme = "dark"
-c.tabs.position = "top"
-c.tabs.width = 32
-c.fonts.default_size = "13pt"
-c.fonts.default_family = "sans-serif"
-c.tabs.padding = {
-    "bottom": 4,
-    "top": 4,
-    "left": 6,
-    "right": 6,
-}
-c.tabs.indicator.width = 0
+    darkmode_on(config, ["about:blank"])
+
+    c.colors.webpage.darkmode.enabled = False
+    c.colors.webpage.preferred_color_scheme = "dark"
+    c.tabs.position = "top"
+    c.tabs.width = 32
+    c.fonts.default_size = "13pt"
+    c.fonts.default_family = "sans-serif"
+    c.tabs.padding = {
+        "bottom": 4,
+        "top": 4,
+        "left": 6,
+        "right": 6,
+    }
+    c.tabs.indicator.width = 0
+    c.url.start_pages = "about:blank"
+
+
+main()