alacritty: add scrollback from extra branch

config/alacritty/alacritty.yml

@@ -162,6 +162,29 @@ colors:
     cyan:    '0x66cccc'
     white:   '0xdddddd'
 
+scrolling:
+  # How many lines of scrollback to keep,
+  # '0' will disable scrolling.
+  history: 1000000
+
+  # Number of lines the viewport will move for every line
+  # scrolled when scrollback is enabled (history > 0).
+  multiplier: 3
+
+  # Faux Scrolling
+  #
+  # The `faux_multiplier` setting controls the number
+  # of lines the terminal should scroll when the alternate
+  # screen buffer is active. This is used to allow mouse
+  # scrolling for applications like `man`.
+  #
+  # To disable this completely, set `faux_multiplier` to 0.
+  faux_multiplier: 3
+
+  # Automatically scroll to the bottom when new text is written
+  # to the terminal.
+  auto_scroll: false
+
 # Visual Bell
 #
 # Any time the BEL code is received, Alacritty "rings" the visual bell. Once