refactor(viewer): rename app to "mm" and improve navigation features

Cargo.lock

@@ -1522,9 +1522,9 @@ dependencies = [
 
 [[package]]
 name = "error-stack"
-version = "0.5.0"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fe413319145d1063f080f27556fd30b1d70b01e2ba10c2a6e40d4be982ffc5d1"
+checksum = "b878b3fac9613c3c7f22eb70bc8a3c6ebdc03cc11479ee60fde1692d747fd45f"
 dependencies = [
  "anyhow",
  "rustc_version",
@@ -2322,24 +2322,6 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2304e00983f87ffb38b55b444b5e3b60a884b5d30c0fca7d82fe33449bbe55ea"
 
-[[package]]
-name = "hello"
-version = "0.1.0"
-dependencies = [
- "clap",
- "clap_complete",
- "error-stack",
- "gpui",
- "ignore",
- "nalgebra",
- "thiserror 2.0.12",
- "tokio",
- "tracing",
- "tracing-subscriber",
- "wayland-backend",
- "wayland-sys",
-]
-
 [[package]]
 name = "hermit-abi"
 version = "0.5.2"
@@ -3152,6 +3134,25 @@ dependencies = [
  "windows-sys 0.59.0",
 ]
 
+[[package]]
+name = "mm"
+version = "0.1.0"
+dependencies = [
+ "clap",
+ "clap_complete",
+ "error-stack",
+ "gpui",
+ "ignore",
+ "nalgebra",
+ "thiserror 2.0.12",
+ "tokio",
+ "tracing",
+ "tracing-subscriber",
+ "unicode-segmentation",
+ "wayland-backend",
+ "wayland-sys",
+]
+
 [[package]]
 name = "moxcms"
 version = "0.7.6"