[PATCH yew-comp 09/15] tree wide: fix clippy lint "manual_strip"

[Shannon Sterz <s.sterz@proxmox.com>]

see:
https://rust-lang.github.io/rust-clippy/master/index.html#manual_strip
Signed-off-by: Shannon Sterz <s.sterz@proxmox.com>
---
 .../pve/lxc_property/lxc_network_property.rs   |  4 ++--
 src/form/pve/mod.rs                            |  4 ++--
 src/form/pve/qemu_cpu_flags_list.rs            |  8 ++++----
 src/form/pve/qemu_machine_version_selector.rs  | 18 ++++++++++--------
 4 files changed, 18 insertions(+), 16 deletions(-)

diff --git a/src/form/pve/lxc_property/lxc_network_property.rs b/src/form/pve/lxc_property/lxc_network_property.rs
index d33267b..f3e582a 100644
--- a/src/form/pve/lxc_property/lxc_network_property.rs
+++ b/src/form/pve/lxc_property/lxc_network_property.rs
@@ -43,8 +43,8 @@ fn get_schema(name: &str) -> &'static Schema {
 }
 
 fn net_property_id(name: &str) -> Option<usize> {
-    if name.starts_with("net") {
-        if let Ok(id) = name[3..].parse::<usize>() {
+    if let Some(name) = name.strip_prefix("net") {
+        if let Ok(id) = name.parse::<usize>() {
             return Some(id);
         }
     }
diff --git a/src/form/pve/mod.rs b/src/form/pve/mod.rs
index 0be5e6f..c92530a 100644
--- a/src/form/pve/mod.rs
+++ b/src/form/pve/mod.rs
@@ -88,8 +88,8 @@ pub enum PveGuestType {
 }
 
 fn parse_unused_key(key: &str) -> Option<usize> {
-    if key.starts_with("unused") {
-        if let Ok(id) = key[6..].parse::<usize>() {
+    if let Some(key) = key.strip_prefix("unused") {
+        if let Ok(id) = key.parse::<usize>() {
             return Some(id);
         }
     }
diff --git a/src/form/pve/qemu_cpu_flags_list.rs b/src/form/pve/qemu_cpu_flags_list.rs
index 048e268..bfcac50 100644
--- a/src/form/pve/qemu_cpu_flags_list.rs
+++ b/src/form/pve/qemu_cpu_flags_list.rs
@@ -55,10 +55,10 @@ fn parse_flags(flags: &str) -> HashMap<String, bool> {
         .filter_map(|flag| {
             if flag.is_empty() {
                 None
-            } else if flag.starts_with("+") {
-                Some((flag[1..].to_string(), true))
-            } else if flag.starts_with("-") {
-                Some((flag[1..].to_string(), false))
+            } else if let Some(flag) = flag.strip_prefix("+") {
+                Some((flag.to_string(), true))
+            } else if let Some(flag) = flag.strip_prefix("-") {
+                Some((flag.to_string(), false))
             } else {
                 log::error!("unable to parse cpu flag '{flag}' - missing prefix");
                 None
diff --git a/src/form/pve/qemu_machine_version_selector.rs b/src/form/pve/qemu_machine_version_selector.rs
index 746aba7..d8a3640 100644
--- a/src/form/pve/qemu_machine_version_selector.rs
+++ b/src/form/pve/qemu_machine_version_selector.rs
@@ -173,18 +173,20 @@ fn extract_version_text(id: &str) -> String {
     if id == "pc" || id == "q35" {
         return tr!("Latest");
     }
-    if id.starts_with("pc-q35-") {
-        return id[7..].to_string();
+
+    if let Some(id) = id.strip_prefix("pc-q35-") {
+        return id.to_string();
     }
-    if id.starts_with("pc-i440fx-") {
-        return id[10..].to_string();
+    if let Some(id) = id.strip_prefix("pc-i440fx-") {
+        return id.to_string();
     }
-    if id.starts_with("pc-") {
-        return id[3..].to_string();
+    if let Some(id) = id.strip_prefix("pc-") {
+        return id.to_string();
     }
-    if id.starts_with("virt-") {
-        return id[5..].to_string();
+    if let Some(id) = id.strip_prefix("virt-") {
+        return id.to_string();
     }
+
     id.to_string()
 }
 
-- 
2.47.3