Add editorconfig. Whitespace cleanup (#54)

Author: notpeter

.editorconfig

@@ -0,0 +1,7 @@
+root = true
+
+[*]
+charset = utf-8
+end_of_line = lf
+trim_trailing_whitespace = true
+insert_final_newline = true

.github/renovate.json

@@ -5,4 +5,4 @@
       "local>oxidecomputer/renovate-config//rust/autocreate",
       "helpers:pinGitHubActionDigests"
     ]
-  }
+  }

.licenserc.yaml

@@ -9,4 +9,4 @@ header:
   paths:
     - '**/*.rs'
 
-  comment: on-failure
+  comment: on-failure

README.md

@@ -1,3 +1,3 @@
 # microbot
 
-A tiny Matrix bot for inclusion in other applications.
+A tiny Matrix bot for inclusion in other applications.

test-utils/Cargo.toml

@@ -8,4 +8,4 @@ matrix-sdk = { workspace = true }
 microbot = { path = "../microbot" }
 ruma = { workspace = true }
 tokio = { workspace = true }
-tracing = { workspace = true }
+tracing = { workspace = true }