add niri and update nvim config

.config/alacritty/themes/themes/inferno.toml

@@ -0,0 +1,29 @@
+# Inferno theme
+# Source https//github.com/hafiz-muhammad/inferno-alacritty-theme
+
+# Default colors
+[colors.primary]
+background = '#270d06'
+foreground = '#d9d9d9'
+
+# Normal colors
+[colors.normal]
+black   = '#330000'
+red     = '#ff3300'
+green   = '#ff6600'
+yellow  = '#ff9900'
+blue    = '#ffcc00'
+magenta = '#ff6600'
+cyan    = '#ff9900'
+white   = '#d9d9d9'
+
+# Bright colors
+[colors.bright]
+black   = '#663300'
+red     = '#ff6633'
+green   = '#ff9966'
+yellow  = '#ffcc99'
+blue    = '#ffcc33'
+magenta = '#ff9966'
+cyan    = '#ffcc99'
+white   = '#d9d9d9'