Add partial filesystem data display for debugging

- Make filesystem display more forgiving - show partial data if available
- Will display usage% even if GB values are missing, or vice versa
- This should help identify which specific metrics aren't being populated
- Debug version to identify filesystem data population issues

Cargo.lock

@@ -279,7 +279,7 @@ checksum = "a1d728cc89cf3aee9ff92b05e62b19ee65a02b5702cff7d5a377e32c6ae29d8d"
 
 [[package]]
 name = "cm-dashboard"
-version = "0.1.105"
+version = "0.1.107"
 dependencies = [
  "anyhow",
  "chrono",
@@ -301,7 +301,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-agent"
-version = "0.1.105"
+version = "0.1.107"
 dependencies = [
  "anyhow",
  "async-trait",
@@ -324,7 +324,7 @@ dependencies = [
 
 [[package]]
 name = "cm-dashboard-shared"
-version = "0.1.105"
+version = "0.1.107"
 dependencies = [
  "chrono",
  "serde",