fix(nx): clear build dependsOn workspace default (#21203)

The bitwarden-clients workspace uses source-direct webpack bundling: apps
bundle libs via @bitwarden/* path aliases in tsconfig.base.json that resolve
to sibling lib source, not dist artifacts.

The workspace default targetDefaults.build.dependsOn: ["^build"] is an
artifact-based declaration that did not match the codebase. Combined with
@nx/js plugin auto-inference of build targets on every lib with a
tsconfig.lib.json, it forces nx build <app> to walk into leaf libs that
cannot compile standalone with tsc. This causes failed builds.

This commit changes the workspace default to [], making the declaration match
the actual bundling pattern. Apps no longer pull broken leaf libs through
their build chain, instead using their dependencies with their aliases.

nx.json

@@ -33,7 +33,7 @@
   "parallel": 4,
   "targetDefaults": {
     "build": {
-      "dependsOn": ["^build"],
+      "dependsOn": [],
       "inputs": ["production", "^production"],
       "outputs": ["{options.outputPath}"],
       "cache": true