jujutsu: Add initial configuration

jujutsu/.config/jj/config.toml

@@ -0,0 +1,25 @@
+[diff.git]
+context = 10
+
+[merge-tools.diffconflicts]
+program                           = "nvim"
+merge-args                        = ["-c", "JJDiffConflicts!", "$output"]
+merge-tool-edits-conflict-markers = true
+
+[revset-aliases]
+"immutable_heads()" = "present(trunk()) | tags() | (trunk().. & ~mine())"
+
+[signing]
+sign-all = false
+backend  = "gpg"
+key      = "6F6A0609C12038F3"
+
+[ui]
+default-command = ["log", "-r", "all()", "--limit", "15"]
+diff.format     = "git"
+diff.tool       = ["difft", "--color=always", "$left", "$right"]
+editor          = "nvim"
+
+[user]
+name  = "Sanchayan Maity"
+email = "me@sanchayanmaity.net"