Configure alacritty

- add config file ~/.config/alacritty/alacritty.yml
  (not synced by mackup)
- make Gnome's <Super>t shortcut start a new alacritty instance
- fix minor mouse issue interacting with vim

.config/alacritty/alacritty.yml

@@ -0,0 +1,88 @@
+# Source: https://github.com/alacritty/alacritty/blob/master/alacritty.yml
+
+
+window:
+
+  # Blank space added around the window in pixels
+  padding:
+    x: 10
+    y: 10
+
+  # Spread additional padding evenly around the terminal content
+  dynamic_padding: true
+
+  # Neither borders nor title bar
+  decorations: none
+
+  # Background opacity (0.0 -> completely transparent; 1.0 -> opaque)
+  opacity: 0.95
+
+
+
+scrolling:
+
+  # Number of lines in the scrollback buffer (0 -> disable scrolling)
+  history: 9999
+
+  # Scrolling distance multiplier
+  multiplier: 10
+
+
+
+font:
+
+  normal:
+    family: FiraCode Nerd Font
+    style: Regular
+
+  bold:
+    family: FiraCode Nerd Font
+    style: Bold
+
+  italic:
+    family: FiraCode Nerd Font
+    style: Light
+
+  bold_italic:
+    family: FiraCode Nerd Font
+    style: Semibold
+
+  size: 12.0
+
+  offset:
+    x: 0  # letter spacing
+    y: 0  # line spacing
+
+
+
+draw_bold_text_with_bright_colors: true
+
+
+
+cursor:
+
+  style:
+    # ▇ (Block) vs. _ (Underline) vs. | (Beam)
+    shape: Block
+    blinking: On
+
+  blink_interval: 500  # in ms
+
+  unfocused_hollow: true  # when window not focused
+
+  thickness: 0.1  # between 0.0 and 1.0
+
+
+
+shell:
+
+  program: /usr/bin/zsh
+  args:
+    - -l  # --login
+
+
+
+key_bindings:
+
+  # Open a new terminal in the same folder
+  - { key: Return, mods: Control|Shift, action: SpawnNewInstance }